What is it?
The M4 GTS is a very expensive, very rare and very, very fast evolution of the BMW M4 coupé, following a lineage of M3 special editions such as the E30 M3 Sport Evolution, E46 M3 CSL and previous-shape E90 M3 GTS. These are all now highly sought after and valued cars among collectors, and BMW hopes this new GTS will join them among the very highest echelons of M rarities.
To that end, a £120,500 asking price and production run limited to just 700 cars - 30 of which will make it to the UK - ensures that only the keenest of the keen will have the pleasure. And if the fixed rear wing, jutting front splitter, extra vents and roll cage don't tell you enough about its track pretentions, the technical spec will.
Thanks to an innovative water injection system, power from the M4's twin-turbo 3.0-litre straight six has been increased from 425bhp to 493bhp, and that's just the start. Carbon-ceramic brakes are standard, the suspension has been significantly beefed up and includes manually adjustable passive dampers, and the wheels wear bigger Michelin Pilot Sport Cup 2 tyres.
For all the stripped-out interior and carbonfibre panels, weight hasn't been reduced significantly, but performance gets a massive boost. With a 7min 28sec Nürburgring lap, the GTS is nearly 30 seconds faster than a standard M4 and comparable with Porsche 911 GT3s in its circuit pace.