New BMW M3: prices, specs and 2021 release date for 503bhp saloon

BMW has officially unveiled the sixth-generation M3. It's on sale now, priced from £74,755 – and it's ready to face-off against an accomplished roster of compact executive performance cars, including the Mercedes AMG C 63, Audi RS 4 Avant and Alfa Romeo Giulia Quadrofoglio.
BMW’s latest iteration of its iconic sports saloon has undergone an extensive mechanical overhaul. There’s an arsenal of extra technology, a new straight-six engine and – following in t