Vents are the same AFAIK.... but the scoops where different on the Rally cars... Classic was much narrower, lower, rounder and hence you couldn't get a classic WRC Scoop to fit over them. The WRC cars don't have the same vents as the road cars... they have these weird carbon vents.... which are completely different. The Newage Scoop off a WRC car will fit over a road car (RA Roof Vent) as it's wider and taller (generally squarer) than the classics!