The word "powerful" is relative. For some people, a powerful diesel SUV might be something like a 190 horsepower BMW X3 or VW Tiguan, since the class goes as low as the T-Roc or Captur. However, there ...

The story behind BMW's unique quad-turbo diesel engine, its impressive performance, and how it stacked up against its rivals in the X5 M50d.

BMW prepared a whole fleet of powertrains for the media launch of this all-new X5. We think the M50d is the most interesting, partly because it's not offered in the States, because it has as many ...

Very few cars have ever been sold with quad turbochargers, the most notable of which come from Bugatti in the form of the EB 110, Veryon, and Chiron. However, BMW has a quad-turbo engine in its ...