New Alpina B4 Bi-Turbo Coupe and Convertible from £58,950 in the UK, Pricier Than M4

Which 4-Series model is more expensive, less zany in looks, rarer and at least on paper, potentially faster than the M4? Why the Alpina B4 Bi-Turbo, of course. Set to make its UK launch at next week's Goodwood Festival of Speed, the B4 is available as a Coupe for £58,950 or as a hardtop convertible for £62,950. Read more »