Chevrolet has stuck more to the spirit of WTCC regulations than the letter with this Ultra ‘racecar study’. These renderings give an idea of Chevy’s concept, which was developed by a global GM team and to be shown at Paris in three weeks’ time. The Ultra has a 187bhp 1.9-litre engine - so it will probably be a little slower than your average WTCC car, but it looks pretty quick. Also at the Paris show will be Chevrolet’s new Epica (link) saloon with a new diesel powerplant. The 2.0-litre common-rail unit has 147bhp and a sizeable 252lb ft of torque. That makes for 0-62mph in 9.7seconds with combined cycle economy of 46mpg.Come back to Autocar.co.uk for more details later in the month.