Tuning is to cars what coffee is to humans – it kicks it up a notch, and some carmakers have gone to great lengths to provide tuned versions of their stock vehicles. BMW is an example of a carmaker, ...

The BMW M3 and M4 just keep getting faster, both in a straight line and around a racetrack. Not only are the base versions more powerful than the outgoing models, but the M3 and M4 Competition models ...