Autoweek just announced that the M3, M5, M6, X6M will all be twin turbo next year. Cost and emissions on the N/A motors forced them to go the turbo route. No specs for the M3 but the M5 will be the 4.4L V-8 500hp & 520tq. The M3 will remain a V8 but no power specs given. Talk about sweet for...