A roomier, faster and more economical BMW 3-series saloon will go on sale in the UK next February. Standout models include a new 242bhp soft-turbo petrol four and a 109g/km economy diesel. Known internally as the F30, the latest 3-series is new from the ground up. It has been four years in the making and is tasked with cementing BMW's dominance over key rivals such as the Audi A4, Mercedes-Benz C-class and Volvo S60.
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