Juin 11 Automotive Engeneering By Pfister Autotechnik-Shop BMW M3 or the M4, program, stages, engine, Biturbo, Lightweight M4, M8 Gran Coupe, interior designer, BMW M4 Competition, AC Schnitzer Which AC Schnitzer one thrills you more? The BMW M3 or the M4 ? BMW M3 (G80) by AC Schnitzer , the BMW M3 G80 now develops up to 590 hp and 790 NMWhich