The BMW X5 E53 initially offered a 4.4-liter M62 V8 at launch for the 2000 model year, and then a 3.0-liter M54 straight-six the following year. Eventually, by 2006, the engine count had grown to ...

What makes the M54 so great is that it has abundant parts ... bringing you up to 400 hp before you risk harming the engine.

Dive into the many reasons that make the E90 BMW 328i, a terrific used car bargain Engine The N52 improved in about every ...