Bartek S.
Aerodynamic Ace
Geneva Preshow: AC Schnitzer Turns the BMW 550i into the 540HP ACS5 Sport S Saloon - CarscoopAccording to the tuning house, the 550i's twin-turbocharged 4.4-liter V8 engine with 407HP and 600Nm has been modified to deliver 540HP and 750Nm, which helps the sedan model to complete the 0 to 100km/h (62 mph) sprint in 4.5 seconds and reach a top speed of 320 km/h (199 mph). AC Schnitzer said that despite the power bump, fuel consumption and CO2 emissions of the ACS5 Sport S are equivalent to the standard BMW 550i.