Back a few years ago my buddy and I had a bit of an Autobahn run up Rt8 with my SDL and his S600 on the way to a meet.
All I can say is that the guys in the 500E's behind us saw a lot of cops, we must have been called in.
I pretty much kept my foot to the floor of the SDL the whole way up, don't think I did much less than 100 at any point...he had a V12...he left me like I was parked a few times.