Audi S5 is one of the fastest Audi stock cars on the market with an engine that could develop 354 HP under it’s hood. The german tuners from MTM thought this wasn’t enough for a lovely car like Audi S5 and they decided to improve this car’s performances. The 4.2L V8 engine could develop now 505 HP and could reach a maximum torque of 403 Nm. The car will accelerate from 0 to 100 km/h in just 4.3 seconds and it’s maximum speed is over 300 km/h. The guys from MTM also tried to make this car more stylish and they created a special exterior kit for it that lowers the car closer to the ground. They also installed a new suspension system, exhaust and new brakes and the car handles a lot better now. The finishing touch was installing 21″ rims that look really nice.