Petrol BMW M3 vs diesel Alpina D3 - fast saloon showdown

Subscribe to the channel now: Steve Sutcliffe has the keys to two very fast versions of the BMW 3-series: the 435bhp petrol BMW M3 and the 345bhp diesel Alpina D3. Should you satisfy your high-performance saloon cravings with a petrol or a diesel engine? Let’s find out. Autocar, the world’s leading motoring magazine and website, delivers industry-leading news, the most in-depth car reviews and opinion from our team of experts. Our presenters include some of the world