BMW is about to slash 40 horses from the M5's 4.4-liter twin-turbo V8. In order to meet new emissions standards, the gas engine is getting a big cut in its maximum output. But don't worry, American ...

V8 BMW M cars will lose power in Europe due to regulations. Thankfully, the U.S versions will keep all of their horsepower intact. BMW reduces V8 engine output in Europe, but not in American models.

Thanks to our relatively affordable gas prices, diesel-powered passenger cars never really caught on here as they did in Europe. To those motorists, the promise of improved fuel economy was clearly ...