Standard with a manual transmission, the 365-hp M2 coupe will be available with an optional 7-speed M Double Clutch automatic. Also unveiled in Detroit is the X4 M40i utility vehicle, using the same N55 3.0L turbocharged inline-6.
Sales dropped last year but a debuting third-generation model is here.
The downsizing could draw more buyers to a model that last year delivered a record 96,393 units and commanded 24.2% of the Large CUV segment, according to WardsAuto data.