The E46 M3 is powered by the S54 straight-six engine and has a 0-100 km/h (62 mph) acceleration time of 5.1 seconds for the coupé, with either the manual or SMG-II transmission.The top speed is electronically limited to 250 km/h (155 mph).The available transmissions were a Getrag 420G 6-speed manual transmission or a SMG-II 6-speed automated manual transmission, which was based on the Getrag 420G.

 The SMG-II used an electrohydraulically-actuated clutch, and gear shifts could be selected via the shifter or paddles mounted on the steering wheel. The SMG-II was praised for its fast shift times and racetrack performance, but some people found its shifts to be delayed and lurching in stop-start traffic.The 3.2 L (200 cu in) S54 engine is the final evolution of the BMW S50 naturally aspirated straight-six engine. The S54 is rated at 252 kW (343 PS; 338 hp) at 7,900 rpm, 365 N⋅m (269 lb⋅ft) at 4,900 rpm, and has a redline of 8,000 rpm.

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