The BMW B58 is a turbocharged straightsix engine, which began production in 15 The B58 replaced the N55 and was launched in the F30 340i The B58 is part of BMW's new modular engine family, each engine using a displacement of 500 cc (305 cu in) per cylinder, following the 8 and B48 engine The B58 engine was named Ward's 10 Best Engines in 16 (installed in the 340i), BHP 340bhp 062 48s C02 179g/km Max Speed 155Mph Insurance group 37E See more specs and info What makes this a BMW M140i, and not the M135i it looks identical to? The current BMW M140i will go down in history as one of most fun and engaging compact BMWs, a true rearwheel drive hot hatch that has only one goal to GPower has just unveiled a new power kit
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