In November 1955 Hong Kong Army Seargent Douglas Stearn drove a Mercedes 190 SL to second place in the Macau Grand Prix for the Zung Fu Company, finishing behind the Austin Healey 100 driven by Robert Ritchie.

For 1956 Mercedes Benz built two light weight competition 190 SLR’s, featuring window less aluminium doors.

Additional weight was saved by replacing the windscreens with perspex racing aero screens and deleting the soft top, front and rear bumpers.

Power was also increased from 104 hp to 115hp which gave the car a top speed of 121 mph, though these speeds are unlikely to have been reached around the tight Macau street circuit.

One of the 190 SLR’s was delivered to the Zung Fu Company, the offical Mercedes Benz dealers for Hong Kong and Macau to this day, for Douglas to drive in the 1956 Macua Grand Prix.

Douglas duly won the race at his second attempt beating the Ferrari 500 Monidal driven by Mário Lopez da Costa and the MG A driven by Fernando de Macedo Pinto.

The 190SL seen in these photographs taken at Mercedes Benz World, Brooklands, was imported to the UK and first registered for the on March 5th 1957, it appears to have been converted to an approximation of the SLR spec by Redcastle Classics in 2008.

The whereabouts of the two original 190 SLR’s are unknown to me at this time if you know please do not hesitate to get in touch.

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