It’s not often that BMW lets its M Division completely loose – but when it does, the results are spectacular. Witness the M4 GTS, a road legal, track ready super coupe built to celebrate the 30th anniversary of the M3. Packing a 493bhp version of the standard M4’s 3.0-litre twin-turbo, but with water injection to allow it to run higher boost, it also features adjustable suspension, thicker anti-roll bars, huge carbon brakes and a matt-painted body with bulging arches and a massive rear wing. Ferocious is probably the best way to describe the driving experience, and this is one car that’s far more at home on the track than anywhere else. Only 30 right-hand-drive UK-spec cars were made out of the total global production of nearly 800, making them highly collectable and prices are starting to reflect this. When new, an M4 GTS was around £120,000, but you’ll need to pay £150,000 now.