M4 gets GTS treatment

BMW has turned up the wick on its already blisteringly quick M4 by slapping a GTS badge on its rump. Shown in concept form at the Pebble Beach Concours d’Elegance, the M4 GTS is not only faster, harder and bristling with an angry-looking and manually adjustable carbonfibre front splitter and rear wing, but adds BMW’s new water-injection technology for a boost in grunt and drop in fuel use Official power figures are yet to be announced (a regular M4 produces 317kW/550Nm), but the wears wider and stickier Michelin Sport Cup which should help shuffle all that grunt to the ection uel use. ed e GTS 2 tyres e road.