507 HP versus 507 HP. Start from 50 km/h to a bit over 255 km/h. Both cars had S6 activated, DSC off, and Sport on (P500S). The BMW M6 had EDC "Sport" on at both races, but the M5 had "Sport" on the EDC activated only on the second race, thereby getting a a bit better result the second race. Compare it with if you bicycle a mountainbike with our without springs / shocks. It will be more work to bicycle the bike with shocks, thereby the car is fastest in EDC "Sport" on.