It was the year 1937. A legend was born. The lightweight construction of the W 125 Mercedes–Benz marked the highest level of racing car construction.
This leading technology was achived with one of the strongest engines of that period as well as a leading chassis layout and road holding properties. The last two itemized components was the prerequisite for the transfer of the power output of the engine (570 hp) on the racing track.
One of the leading racing cars of the period between 1934–1937 was created. For the first time the superiority of the german racing cars was so obvious, that everybody was only walking about the duel between Mercedes–Benz and Auto Union.
The opening Grand Prix in 1937 in Tripolis was won by Hermann Lang. Three weeks later Rudolf Caracciola was listed as victor of the Avus race in Berlin. In mid of 1937 Rudolf Caracciola won the German Grand Prix at the Nürburgring, von Brauchitsch became second.
Further triple victories for Mercedes was achieved at Monaco Grand Prix and the Swiss Grand Prix. At the end of the season Rudolf Caracciola won the Grand Prix of Italy and the Masaryk race in Brünn. Due to his four victories during the season in the W 125 Rudolf Caracciola won the European Chmapionship of the year 1937.
Technical data of the original vehicle.
8 cylinder in line engine
Roots compressor
Bore x stroke: 94 x 102 mm
Displament: 5660 ccm
Max output: up to 600 hp at 5.800 rpm
Top speed: up to 318 km/h
Consumtion: aprox. 160L/100km
Wheel base: 2794mm
Front track: 1422mm
Rear Track: 1473mm.