The FIA sanctioning body has let slip some details regarding various changes coming to the World Rally Championship by 2017, and a concept car rendering to put a face to some of the new aerodynamic allowances.
Among the list of regulation changes that can be seen in the above World Rally Championship concept are body overhangs which have been extended, by 60 mm front, and 30mm rear, according to the FIA. Width has also been increased by 55 mm, while the permitted dimensions of the fixed rear wing have grown by an unspecified amount. The allowable size for the rear diffuser is restricted, but the design is up to the team, and it will be allowed to protrude up to 50 mm from the rear of the body.
Changes that you won’t see on the above World Rally Championship concept car render include a meaningful bump in power from the regulation 1.6-liter turbocharged four-cylinder engines – from 300 HP to 380. The FIA states that diameter of the turbo restrictor will grow from 33 to 36 mm, while maximum pressure remains unchanged at 2.5 bar. At the same time, the minimum car weight requirement will decrease by 25 kg, making for an even more exhilarating weight-to-horsepower ratio.
World Rally Champion Sebastien Ogier has approved the new World Rally Championship concept, and the rule changes as a whole, saying: “As a racing driver you are always looking for more performance. I think the larger wing and new aerodynamics will give the race car a bit more downforce, more handling and more speed going into the corners.”