This 600HP Audi S4 Avant B5 is the ultimate sleeper daily driver | Retro Garage

Could you daily this 600hp Audi S4 Avant B5 Sleeper Daily? We recently visited our friend Paul while in Germany with 2002 Audi S4 B5 running 600hp thanks to its 2.7 biturbo engine now having an RS4 intake manifold, Audi RS6 C5 turbos with the heads and valves from a naturally aspirated 2.8 litre v6. Don’t join the 590,000 other oldschool or classic car enthusiasts here :   / retrogarageofficial