Ever wondered how a high-mileage BMW M4 engine holds up? We tear down a 130,000-mile S55 to inspect its condition and install the Evolve Billet Crank Hub Fix. Watch as we reveal the wear and tear ...

The 2017 BMW M4 DTM Champion Edition carried the highest-powered version of the BMW S55 inline six engine produced for a street car. It was created to commemorate Marco Wittmann winning the ...

2017 BMW M4 DTM Champion Edition - 500 Horsepower (S55 Engine) The 2017 BMW M4 DTM Champion Edition carried the highest-powered version of the BMW S55 inline six engine produced for a street car.