The BMW M3 Convertible is powered by BMW M�s brand-new V8 displacing 4.0 litres and developing maximum output of 309 kW/420 hp; maximum torque is 400 Nm/295 lb-ft at 3,900 rpm; maximum engine speed 8,400 rpm, optimum muscle and thrust throughout the entire range of engine speed.
Individual throttle butterflies, variable double-VANOS camshaft control, Brake Energy Regeneration; engine 15 kg lighter than the six-cylinder power unit on the former model.
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