All the evidence points to BMW using its twin-turbocharged 3.0-liter inline-six engine in the coupe. It’ll supposedly produce the same power as the M4 CSL—543 ... as its four-door singling.

Like the four-door M3 CS before it, we knew the M4 CS would arrive ... The CS undercuts CSL on price, but can’t match the hard-edged focus of BMW’s limited-production halo car.

So, it’s an M4 with just two seats ... As standard, the CSL came with Michelin Pilot Cup 2R tyres but for our cold, most drizzly time with BMW’s new hardcore coupé it was wearing the more ...