BMW is using an old-school trick to improve the performance of one of its newest cars. The twin-turbocharged six-cylinder that powers the M4 coupes it employs as a safety cars for the Moto GP ...

When it comes to pump-gas performance, the name of the game is usually compromise. Unfortunately for turbo LS (or other) enthusiasts, real street (and some track) cars walk that fine line between ...

So what do you do when you've built your motor, strapped on the biggest turbo you can tolerate and basically tuned your forced-induction car to the teeth-but you still want more power? More boost ...

Yeah, sure, the BMW M4 GTS has a boy-racer huge rear wing, enough custom bodywork to make the guys at Mansory look twice and factory-fitted six-point harness-equipped racing seats that, sadly, aren’t ...

Injecting a mixture of water and methanol into the intake of your diesel engine can reap multiple benefits. There is an intercooling effect that creates a denser charge of air. This cooler air has a ...