If you are only driving in cities and in traffic jams, then a 50km/h car would be plenty sufficient. I don’t think anyone drives over 250km/h in these things, even in Germany. Most countires have much lower speed limits anyways.
Why is he driving in 2 lanes, and taking his hands off the wheel? Also, I don't understand why he is rapidly slowing down in the fast lane. Is he brain dead?