Details about the BMW M2 CS continue to leak out. Its turbocharged 3.0-liter inline-six reportedly makes 444 horsepower (331 kilowatts), and there's a choice of a six-speed manual or seven-speed dual-clutch unit. An adaptive suspension would smooth out the bumps, and optional carbon-ceramic brakes would help for slowing things down.

BMW M2 CS Spied With Hood Bulge, Bigger Rear Spoiler