Toyota 00:05 Citroen 03:00
Ford 06:00 Hyundai 08:49
The 1.6 L turbo-charged engine was retained in the 2017 World Rally Car regulations, but the turbo restrictor diameter was increased from 33 mm to 36 mm, increasing the engine's power output from 310 bhp (223.7 kW) to 380 bhp (283.4 kW). Minimum vehicle weight was decreased by 25 kg.
Manufacturers are also given more freedom to maximise aerodynamic performance, large brake cooling ducts in fairings forming enlarged wheel arches, and are allowed to use electronically-controlled active centre differentials, while the front and rear differentials remain mechanical.
While 2011 specification World Rally Cars will be allowed to compete in 2017, the new World Rally Cars are allowed for use by manufacturers' teams only.
