Tag Archives: Oliver

Dodge Powered Guest Car – Shadow Dodge DN6 #3A

For the 1975 US Formula 5000 season Don Nichols had Tony Southgate design a F5000 version of Shadow’s primary Formula one contender the DN5, known as the DN6 the main differences were that it required a sub frame to carry the 5 litre / 302 cui Chevrolet engines the team ran up until Atlanta, in place of the load bearing Ford Cosworth DFV used to power the DN5.

Shadow Dodge DN6, Ironstone, Concours d'Elegance

1974 Can Am Champion Jackie Oliver was retained to drive the UOP Lead Free Oil Products F5000 Shadow DN6 and his results, 3rd at Pocono, 6th at Mosport, 11th with a blown engine at Watkins Glen, 2nd At Road America and 4th at Mid Ohio showed the Chevrolet powered car was not lacking too much in competitiveness.

Shadow Dodge DN6, Ironstone, Concours d'Elegance

At Road Atlanta the team switched to Dodge Motors, coincidentally or otherwise just as the Shadow Formula One team was seeking an edge with the Chrysler Europe Matra V12 powered Shadow DN7 in Austria and Italy.

Shadow Dodge DN6, Ironstone, Concours d'Elegance

Just as with the Matra V12 in Europe the Dodge motor did not significantly improve Jackie’s fortunes he finished 4th in Atlanta, crashed at Long Beach, came home fifth at Laguna Seca and retired with low oil pressure at Riverside.

Shadow Dodge DN6, Ironstone, Concours d'Elegance

For the Long Beach Grand Prix the team entered their rising Formula One star Tom Pryce in a Dodge powered DN6 which is believed to be the one seen in these photographs taken by Geoffrey Horton at Ironside Concours d’Elegance a few years ago.

Shadow Dodge DN6, Ironstone, Concours d'Elegance

Tom retired from the race after completing just 14 laps of the final with a broken gearbox after qualifying 5th one spot behind Jackie and finishing third in his heat. At Riverside the team invited rising Tyrrell star Jody Scheckter to try the guest DN6.

The South African qualified 3rd, 5 spots ahead of Jackie, finished his heat with a blown head gasket after 5 laps and retired from the race after 33 laps with an engine problem, Jackie carried on racing the Dodge powered DN6 in 1976 with considerably more success when the car remained reliable.

My thanks to Geoffrey Horton for sharing his photographs of the DN6, which has been restored by his neighbor Dennis Loscher, taken at Ironside Concours d’Elegance in 2013.

Thanks for joining me on this “Dodge Powered Guest Car” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again fr a look at the last of the nine Mercedes Benz 300 SLR’s to be built. Don’t forget to come back now !

Plan B – Connaught Type-B #B9

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While Raymond May’s was busy pumping the British motor industry for patriotic cash to lubricate the wheels of the newly formed British Racing Motor’s, to ex RAF pilots Rodney Clarke and Mike Oliver, backed by Kenneth McAlpine went about there motor racing in a far more pragmatic understated way.

Setting up behind the Continental Autos Garage in Send, Guildford, Surrey, Connaught, notice the pun, Engineering was founded by Rodney and Mike to build a 2 litre / 122 cui sports car around proprietary Lea Francis chassis and motors for Kenneth and Rodney to race in 1949.

The immediate success of the L2 in Rodney and Kenneth’s hands led the team to try their hand at building an open wheel Type A for Formula 2 using their own development of the Lea Francis motor for the 1950 season.

By 1952 a series of Formula 2 races counted towards the world championship and Dennis Poore finished 4th in the British Grand Prix the teams highest finish in the 1952 season limited to 3 outings in Britain, the Netherlands and Italy.

More sporadic World Championship appearances in 1953 which included private Connaught entries from Ecurie Ecosse, and Ecurie Belge did not bring any further success nor did the final appearance of five 2 litre formula two Type-A’s in the 1954 British Grand Prix run to the new Formula One 2 1/2 litre formula.

Rodney and Mike had hoped to use the Coventry Climax Godiva V8 for their Type-B formula one car in 1954 but when that got cancelled they came up with a plan B to develop a 2.5 litre / 152 cui version of the 2 litre / 122 cui Alta Forumla 2 engine against which they had been competing since 1950.

The Type-B made it’s only 1955 World Championionship appearance at the British Grand Prix where four works cars appeared alongside the private entry for Leslie Marr, they all retired except Jack Fairman’s entry which did not start.

Connaught B-Type, Tony Brooks, Goodwood Festival of Speed,

At the end of the 1955 season there was a non championship event run at Syracuse in Sicily, with the withdrawal of the works Mercedes team in the aftermath of the 1955 Le Mans crash the organisers called up Mike Oliver at Connaught to see if he could be tempted with an offer of £1,000 per car start money to bring two cars to race against the five works Maserati’s on the entry list.

Short of funds this was an offer not to be missed and after briefly testing a stream lined car which was to be entered for Les Leston and open wheeler chassis #B1 entered for debutant Tony Brooks the cars were packed into the back of a pair of converted 1939 AEC 10T10 Regal Greenline buses and sent on their 2,000 mile journey to Sicily.

On the Monday before the race Mike flew his car to Le Toquet in France to find a message informing him that the two transporter had been impounded because their documents were not in order.

Having sorted out the paper work the Connaught convoy set off for Sciliy with the buses being driven non stop in 12 hour shifts by the two pairs of mechanics. By the time they got to the Calabrian mountains the fun really started, the buses needed to reverse back and forth to make it round the hairpins which slowed progress down to 11 mph and one of the buses needed to have it’s brakes relined.

Meantime Tony Brooks, who’s 42 race CV was topped by just three non championship starts in a Formula 2 Connaught Type-A and one start for Aston Martin at Le Mans, took timeout from his dental studies in Manchester and flew down to Syracuse.

With no team in sight he and team mate Les Leston hired a pair of Vespa motor scooters and set about learning the track, in so doing Tony acquired a sore between his throttle hand thumb and index finger.

Both transporters eventually arrived in time for practice on the Saturday before the race and with out any sleep the mechanics set about preparing the cars.

Tony Brooks WB Tribute, Brooklands,

Tony had not so much as sat in his open wheel Type-B before the event and the teams priority in order to at least recoup their travel expenses was to start the race so practice laps were limited.

It came as a great surprise to find that Tony easily qualified a competitive third and would start alongside the leading Maserati’s of Luigi Musso and Luigi Villoresi with Les Leston not far behind.

The 243 mile race was run over 70 laps where Tony observed that “there was none of this business of using a foot of grass, as on an English airfield circuit, then bobbing back’, and reliability would be a major issue, in their favour the tight track suited Connaught’s handling which was at a premium over the outright power advantage of the Maserati’s.

The Maserati’s of Musso and Villoresi and Harry Schell led the three opening laps but on Lap 4 Tony passed Harry and then passed Villoressi with 10 laps completed.

Tony then went into a terrific dice with Luigi Musso who was working hard in his drum braked Maserati to keep the disc braked Connaught of Brooks at bay after swapping the lead several times and raising the average lap record speed from 99 mph to 102 mph Tony was able to ease away to a 50 second lead without putting any unnecessary stress on his car.

The Grand Prix win was the first for an English driver in an English built car since 1924 when Sir Henry Seagrave won the San Sebastian Grand Prix driving a Sunbeam.

After the race while tightening a handkerchief around his hand, injured by the Vespa, with his teeth Tony lost an expensive dental bridge piece from his mouth in the crowd as he prepared to go back to the hotel upon the motor scooter.

He fitted a spare he carried that night for the celebrations but since it was not very secure he restricted his conversation which the Scilians interpreted as another example of the famous British stiff upper lip.

Tony went on to contend for the 1959 World Title with Ferrari, but ended up finishing second to Jack Brabham driving a Cooper, and retired from Formula One in after finishing third in the 1961 US Grand Prix driving for BRM with 6 career championship victories.

Connaught went into steady decline after Ron Flockhart scored the manufactuers best championship finish of 3rd in the 1956 Italian Grand Prix, by the end of 1957 Connaught was auctioned off piece meal and Rodney and Mike returned to running Continental Autos.

Bernie Ecclestone bought two cars which he ran for in 1958 at Monaco and the British GP without success, until the death of his lead driver Stuart Lewis – Evans died from burns received after crashing his Vanwall in the 1958 Morrocan Grand Prix.

The last person to race a Connaught in a World Championship event was Bob “father of Boris” Said who started 13th but pushed his car into the pits after an accident on the opening lap of the 1959 US Grand Prix.

Tony is seen in today’s photographs wearing the blue shirt being interviewed during the the William Boddy Tribute at Brooklands and at the wheel of chassis #B9 at Goodwood Festival of Speed.

#B9 was built up from an unnumbered spare with original Connaught parts by by long-time Connaught specialist Spencer Longland, the original #B1 which Tony drove in Syracuse belongs to Bernie Ecclestone having been damaged in a fire at Syracuse in 1957 and been repaired many years later.

My thanks to Tim Murray, Alan Cox and Peter Morley at The Nostalgia Forum for answering my questions.

Thanks for joining me on this “Plan B” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again for Maserati Monday tomorrow. Don’t forget to come back now.

Classic Racing Americana – Silverstone Classic

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This weeks Americana post comes from Silverstone Classic where an interesting selection of vehicles was on display.

Rigling Buick, Bachmann, Maserati Centenary Trophy, Silverstone Classic

The Maserati Centenary Trophy featured three US cars two of which appear to have been Indy 500 racers including the Rigling Buick, seen with Heinz Bachmann at the wheel above, possibly raced as a Schafer 8 Special between 1931 and 1934 by Paul Schafer who was joined with a second Schafer 8 Special in the 1934 Indy 500 by Al Miller who finished 6th. Coincidentally Paul carried the #26 in the 1934 race and Al the #36.

Kurtis KK500G, Fred Harper, Maserati Centenary, Silverstone Classic

The second Indy Car in the Maserati Centenary Trophy was the 1957 Kurtis KK500G driven by Fred Harper, this car was bought by Ray “The Flying Grocer” Crawford in 1957. Ray was a rare owner driver who failed to qualify the Meguiar Mirror Glaze Special at Indy in 1957 and 1958, but he did bring the car to Europe both years and raced it in both of the “Race of Two Worlds” events held at Monza, Italy in 1957 and 1958 finishing 7th and 4th respectively.

Corvette Stingray, Craig Davies, Chopaed International Trophy, Silverstone Classic

Craig Davis driving the #99 Corvette Stingray drove to an entertaining 13th place finish with Tim Harvey in the Chopard International Trophy, here the car is seen having just passed the #112 Cobra driven by Tim Summers.

Ford Falcon, Martin Melling, Mustang Celebration Trophy, Silverstone Classic

Seeing a Ford carrying a #88 these days seems a little strange, but this was Silverstone not Darlington, the ’64 Ford Falcon above was driven by Martin Melling to a 32nd place finish in the Mustang Celebration Trophy Proudly Presented by Pure Michigan.

Ford Mustang, Jackie Oliver, Mustang Celebration Trophy, Silverstone Classic

The #3 ’65 Ford Mustang above was driven by former Le Mans winner, Grand Prix driver and Arrows Formula One team owner Jackie Oliver to a fine fifth place in the Mustang Celebration Trophy Proudly Presented by Pure Michigan.

Intrepid RM1, Peter Garrod, Group C Endurance, Silverstone Classic

Finally it was great to see the 1991 Chevrolet powered IMSA Intrepid RM1 get a run in the Group C race with Peter Garrod at the wheel. The Intrepid designed by Bob and Bill Riley an built by Pratt & Miller was a forerunner of the Riley Scott’s US Prototype Sports Cars that would win 32 races between 1995 and 2005.

Thanks for joining me on this “Classic Racing Americana” edition of “Gettin a li’l psycho on tyres” I hope you will join me again tomorrow for Ferrari Friday. Don’t forget to come back now !

Widengren’s Double Twelve – Maserati 26M

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While looking for information about last weeks featured Maserati 8C 3000 I stumbled across some information about the Maserati 26M I featured early on in this run of Maserati Monday posts.

This cars known history starts with an almost unknown Swedish department store heir Henken Widengren, who bought the two seat bodied car with a 100hp Tipo 26C spec supercharged 1078 cc / 65.7 cui 8 cylinder motor.

Maserati 26M, Goodwood Festival of Speed.

Henkens best result from three races was a 19th place finish with Richard Oats in the 1931 Double Twelve at Brooklands. After a brief spell during which this car was raced by Lindsey Eccles in 1932 the car found it’s way into the hands of RJW ‘John’ Appleton who embarked on a programme of development that would last until nearly the turn of the millennium.

Appelton almost immediately disposed of the motor and gearbox replacing them with a Riley Nine 4 cylinder motor and ENV pre selector gearbox taken from an MG Magnette.

Maserati 26M, Goodwood Festival of Speed.

The shorter motor allowed Appleton to reduce the wheel base and chassis length by a foot which was also reflected in the shortened Maserati bonnet. After fitting a super charger the Maserati Riley with Applton at the wheel immediately won it’s class in the Shelsley Walsh hillclimb and shortly after it’s 2 bearing crankshaft broke.

During the winter of 1935 the Maserati Riley morphed into the Appleton Riley as RJW set about dismantling the frame lightening it and fitting new narrower cross members and a completely new single seat body.

Maserati 26M, Goodwood Festival of Speed.

Engine modifications including fitting a 3 bearing crankshaft to the Riley Nine motor brought the power up to 120hp which facilitated two successful seasons competition that included further class victories at Shelsley Walsh, a victory in a short handicap race at Brooklands, new class lap record of the Brooklands ‘Mountain’ circuit and standing start class records over 1 km and 1 mile.

In 1937 a bronze head with special valve gear was fitted and fetlled by AF Ashby while the Zoller supercharger was replaced with an Arnott item running at 27 psi taking the power output up to 160 hp. To help the car stop more effectively larger steel lined Elektron drum were fitted and to improve the handling a new rear suspension with transverse friction dampers was devised.

Maserati 26M, Goodwood Festival of Speed.

With a lighter and slimmer body, increasingly resembling the Mercedes 125 Grand Prix cars, the 130 mph Appleton Special was driven to further success at Brooklands, Chrystal Palace and the Poole Speed Trials up until 1939.

After 1945 Appleton detuned his special, using a Roots supercharger and reduced boost pressure the power output fell to a modest 135hp, enough to win it’s class at Shelsley in 1946.
In 1948 the supercharger drive split and plans were made for the 1931 Maserati beam axles to be replaced with fully independent suspension but the car was sold before the drive was repaired or the suspension fabricated in the early 1950’s.

Maserati 26M, Goodwood Festival of Speed.

From 1963 to 1964 F Baker with help from RJW drove the Appleton Special now fitted with a normally aspirated 1500 cc / 91.5 cui Riley 12/4 motor that had 4 Amal carburetors to facilitate fuel flow.

Ownership then passed to Alan Wragg in the early 1970’s and thence by 1974 to Colin Warrington who fitted a supercharger to the 12/4 motor.

Maserati 26M, Goodwood Festival of Speed.

Since 1978 the Appleton Special has belonged to the Majzub family and up until the turn of the millennium Julian Majzub competed with it in VSCC events.

Sometime after the millennium the Appleton Special was taken apart and the shortened 1931 Maserati chassis rails and 1931 axles were combined with other Maserati parts to build the 26M featured today seen at Goodwood Festival Of Speed.

Maserati 26M, Goodwood Festival of Speed.

Widengren’s original Maserati body was of course chopped about by Appleton and is thought to have long since ceased to exist. However the discarded modified Maserati 2 seat body, which T.A.S.O. Mathieson and Mike Oliver had converted for road use by 1947, from the Louwman Museum’s ex Birkin 8C 3000 chassis was acquired from Cameron Miller and is believed to have been fitted to this car.

It should be noted that the Tipo 26C, 26M and 8C 3000 all shared the same basic chassis design with the major differences being the size of the 8 cylinders motors fitted.

Today’s featured car is fitted with a just under 2.8 litre / 170 cui 8 cylinder Maserati motor, over twice the size of the Tipo 26C 1078 cc / 65.7 cui 8 cylinder motor that Henken Widengren was supplied with.

My thanks to all those on various The Nostalgia Forum threads mentioning the Appleton Special who have unwittingly contributed to my understanding of the story behind today’s featured car.

Thanks for joining me on this “Widengren & Appleton” edition of “Gettin’ A Li’l Psycho On Tyres”, I hope you will join me again tomorrow when I’ll be looking at some French cars that took part in the recent Chipping Sodbury Classic Run. Don’t forget to come back now !

Fatal Exhaust – Maserati 8C 3000 #3002

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After Alfieri Maserati’s death in March 1932 the remaining Maserati brothers continued to develop his new 3 litre / 183 cui supercharged straight eight motor. Before the end of 1932 Maserati had fitted a 220hp version of the new motor to an 8C chassis #3001 for Luigi Fagioli to drive in the Czechoslovak Grand Prix at Brno where he finished second to Louis Chiron in his Bugatti T51.

Maserati 8C 3000, Goodwood Festival of Speed

With the financial collapse of Bentley in 1931 the Bentley Boys were struggling to find British built vehicles in which to race. A second Maserati 8C chassis #3002, seen here at Goodwood, was bought by former Bentley Boy and 1928 Le Mans winner Bernard Rubin for fellow Bentley Boy and 1929 Le Mans winner Sir Henry Ralph Stanley ‘Tim’ Birkin to drive in the 1933 season.

Maserati 8C 3000, Goodwood Festival of Speed

Unfortunately ‘Tim’ only got to drive #3002 once in the infamous 1933 Tripoli Grand Prix, a race which is best remembered for a story surrounding a legal syndicate which comprised three lottery ticket holders and three drivers who agreed to divide up various prize monies on offer equally in the event that one or more of the syndicate drivers won, came second, third or any conceivable combination thereof.

Maserati 8C 3000, Berend, Goodwood Festival of Speed

Of course being described by W.O. Bentley to be “the greatest Briton of his time” ‘Tim’ would have nothing to do with the syndicate and intended to do his best to ensure they did not get their result and led the opening four laps of the race. On lap 16 ‘Tim’ pitted which, due to his inexperienced pit team, is said to have cost him more time than his rivals and in particular syndicate members Archi Varzi, who did not need to stop and Tazio Nuvolari who did.

Maserati 8C 3000, Berend, Goodwood Festival of Speed

Some sources say it was during this pit stop that ‘Tim’ accidentally burnt his arm on the exhaust of his car, others say it was during practice earlier in the event, but either way ‘Tim’ continued to finish third, 1 and half minuets, behind Archi and Tazio in that order, the same order to which both are alleged to have agreed on the flip of a coin on the morning of the race.

Maserati 8C 3000, Goodwood Festival of Speed

Tragically the burn ‘Tim’ had suffered from the exhaust turned septic and that in combination with his malarial condition put him in hospital six days after the race and five weeks later Britain lost one of it’s most popular and able drivers.

Maserati 8C 3000, Goodwood Festival of Speed

#3002 was driven in 1934 by Hon. Brian Lewis for Noel Rees at Brooklands where it came second in the International trophy to another Maserati driven by Whitney Straight with both cars sharing the lap record.

Maserati 8C 3000, Berend, Goodwood Festival of Speed

By 1937, following a string of ever less competitive performances with a variety of drivers #3002 was retired only for it have a post ’39-’45 war career, starting in 1946 when first Dudley Froy drove the car in the Easter ’46 VSCC Elstree speed trials.

Maserati 8C 3000, Goodwood Festival of Speed

Next future legendary Aston Martin, Ford GT40 and Gulf Racing manager John Wyer prepared #3002 for T.A.S.O. Mathieson drive in some of the earliest post war French races at Bois du Boulogne, St Cloud, where finished a best 5th and GP du Rousillon, where TASO recorded a 6th place finish.

TASO then started converting the 220hp car for road use and registered her for use on the kings highway, but sold her on in 1947 to Mike Oliver before the job was complete.

Once Mike had finished the conversion to road spec he drove #3002 to a seventh place finish in the ’48 Luton Hoo sprint.
Later in 1948 new owner Squadron Leader John Crampton DFC continued competing with the car at the Prescott and Shelsey hillclimbs along with the Brighton Speed trials and at Goodwood up until 1949.

The car was subsequently rebuilt, still in road going trim, by Alan Southon of the Phoenix Green Garage at Hartley Wintney before spending time in the United States.

Cameron Miller then undertook a restoration of #3002 for Peter Kaus of the Bianco Collection which included replacing the body, the remains of the old one subsequently found their way on to another Maserati which I shall be revisiting next Monday.

The Louwman Museum in the Netherlands now owns #3002 which is seen at Goodwood with Hulsoff Berend at the wheel.

My thanks to FailedJourno at The Nostalgia Forum for pointing out that I confused today’s featured #3002 with the car I shall be revisiting next week.

Thanks for joining me on this “Fatal Exhaust” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow. Don’t forget to come back now !

The Ambassador’s Embassy – Shadow Cosworth DN1 #DN1-3A

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Ten years after winning his first World Championship driving for BRM, in 1963, and five years after winning his second World Championship driving for Lotus, in 1968 (Norman) Graham Hill had become the senior citizen of the sport with wins at Indianapolis in 1966 and at Le Mans in 1972 to make a unique triple crown of victories which only he has achieved, making him arguably the most versatile driver in the history of the sport. Graham was also the first man to win the Monaco Grand Prix five times a record that was not equaled until 1992 and beaten until 1993 when Ayrton Senna won his fifth and sixth Monaco Grand Prix victories.

Shadow Cosworth DN1, Silverstone Classic

As the wise cracking head of Embassy, UK brand cigarettes, quipped in 1973 at the launch of Graham Hills Embassy sponsored Formula One Team every ambassador needs an Embassy. Graham’s was built by, the then relatively unknown in Europe, Shadow a team that had cut it’s teeth in Can Am primarily with Graham Hill’s former Lotus Team mate Jackie Oliver.

Shadow Cosworth DN1, Silverstone Classic

The Shadow DN1 was designed by Tony Southgate who’s CV includes designing the last two BRM’s to win major races the P160, an example of which Jackie Oliver had driven in 1972, and P180 which bears a familial resemblance to today’s featured DN1 apart from the fact that the latter is powered by a by 1973 ubiquitous Ford sponsored Cosworth V8 which Graham Hill had been instrumental in testing back in 1967.

Shadow Cosworth DN1, Silverstone Classic

Under the umbrella of Mr Shadow, Don Nichols, sponsored by UOP Lead Free fuel the Shadow team ran two black works cars for Jackie Oliver and 1972 Can Am Champion George Follmer and sold a third car #DN1-3A to Graham Hill for him to run as a privateer. Not for the first, or the last, time none of the Shadow cars were ready for the start of the season the works team missed two races before making their debut in South Africa where George starting 21st came through to finish 6th and score a single world championship point on his Grand Prix debut.

Shadow Cosworth DN1, Silverstone Classic

Graham’s car was ready at the next race the Spanish Grand Prix where Graham qualified 22nd but failed to finish after experiencing problems with his brakes, while George Follmer came through to a seasons equal best 3rd place finish in his second championship Grand Prix. At the Belgian Grand Prix Graham qualified 23rd and came through to finish ninth which would prove to be his best result in an otherwise totally frustrating year for his fledgling Embassy Racing Team.

Shadow Cosworth DN1, Silverstone Classic

The works UOP Shadow teams debut season was similarly also fraught with disappointment until the Canadian Grand Prix where Jackie Oliver scored his a career equaling best third place finish, five years after he had finished 3rd in the 1968 Mexican Grand Prix. For the 1974 season Graham Hill took his Embassy sponsorship to Lola while Jackie Oliver and George Follmer returned to the Can Am series where they finished 1st and 2nd respectively when the series finally stopped one race short of the scheduled season.

Shadow Cosworth DN1, Silverstone Classic

Jackie Oliver became increasingly involved in the management of the Shadow team while keeping his hand in driving the mighty Dodge powered Shadow DN6 Formula 5000 cars and put in a one off final Formula One appearance at the 1977 Swedish GP where he finished 9th.

Daryl Taylor is seen at the wheel of #DN1-3A at recent Silverstone Classic events.

Thanks for joining me on this “The Ambassador’s Embassy” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow. Don’t forget to come back now !

Twelve Hundred Horsepower – Shadow Chevrolet DN2 #DN2-2A

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Despite the loss of it’s sponsor Johnson’s Wax, the number of events being cut back to eight, down from eleven in 1970 and the number of entrants falling to an all time low, just 15 at Edmonton, the 1973 Can Am Challenge was still a huge draw for spectators who wanted to see the worlds hitherto most powerful racing cars competing on road courses. According to contemporary reports attendances at all of the races in the 1973 Can Am Challenge were up.