the 3-litre twin-turbocharged straight-six found in the F82 M4 puts out 424bhp, just a 10bhp increase over its predecessor, the E92. The big jump for the turbo’d motor over the old naturally ...
Can be tricky in the wet and on challenging roads The move to turbocharging made the M4 much more frugal than its naturally-aspirated V8 forebear, the E92 M3. BMW’s official economy figure is ...