BMW M4 vs Audi RS7 vs Mercedes C63 AMG – 2015 Unlim 500+

BMW M4 vs Audi RS7 vs Mercedes C63 AMG – 2015 Unlim 500+
BMW M4 (F82) Custom Stage 2 (550 HP), Saak Ch.
vs
Audi RS7 VAG-Doctor (700 HP), Vladimir Z.
vs.
Mercedes-Benz C63 AMG (W204) Coupe Morendi-Weistec (700 HP), Andrey S.