At the starting line with DTM Mercedes AMG C-Class Coupés.
Power screwdrivers screeching, then torque limiters rattling – this sequence of noises regularly breaks into the peace and quiet on the HWA AG premises in Affalterbach near Stuttgart. In a temporary pit stop there is a Mercedes AMG C-Class Coupé. Above the top of the car: a metal rod with four tubes hanging from it. On the ends of the tubes there are compressed air impact wrenches which four mechanics use again and again to change the tyres. It takes them about three seconds. In a few more days the new German Touring Car Championship (DTM) season is due to start. In the evening, the team sets off for the Hockenheimring where the starting shot will be fired for the first race. Until then they will use every spare minute to work at achieving the best possible result.