1927

At the International Motor Show for Trucks and Special-Purpose Vehicles in Cologne, Daimler-Benz unveils its new range of commercial vehicles, series production of which has meanwhile commenced. The diesel variant of the L 5 5-tonne truck fitted with the six-cylinder OM 5 engine has its premiere and is soon to become the world's first diesel truck from large-scale production. The development of the OM 5 engine had been given the green light following the decision by the Daimler-Benz community of interest to pursue the pre-chamber principle developed by Benz. A compressor-free diesel injection system using the injection pump produced by Bosch provides the only route to cost-effective large-scale production of high-speed vehicle diesel engines.

The first outing for the Mercedes-Benz S in the inaugural race on the Nürburgring ends in a 1-2-3 victory, with Rudolf Caracciola taking the win. The S (for "Sport"), developed on the basis of the K model, is powered by a 6.8-litre engine developing output of 120 hp / 88 kW without supercharger and 180 hp / 132 kW with supercharger.

In the national race on the Klausen Pass, Adolf Rosenberger drives a Mercedes Grand Prix racing car to a new Klausen record. Mercedes-Benz completes a clean sweep of the first five places in the touring car class over five litres: Rudolf Caracciola takes the win, with female racing driver Ernes Merck finishing in second place. In the international race, Caracciola sets a new Klausen track record for sports cars. Three S racers and a K model fill the top four places in the sports car class.