Revisions included a revised suspension setup, four-piston front brakes, and a new exhaust system. The well-appointed cabin was equipped with many safety features, such as a bolt-in roll cage, Recaro racing seats with six-point harnesses, and a fire extinguisher. The steering wheel was also swapped out for a smaller diameter part.
Lastly, Mercedes Sport-Technik fitted the fleet with wider wheels and Pirelli P7 205/55VR15 tires. Interestingly, the official paperwork submitted to the German National Racing Commission shows the 21 190Es did not race with the engines listed on their factory data cards.
The dramatic race was filled with excitement. With rain pouring down, the rear-wheel drive 2.3-16s raced around the track, using the advanced multi-link rear suspension to its full potential. While Prost had the advantage of being in pole position, Elio de Angelis knocked the rear of his car after just four turns.