British modding firm Kahn Design has unveiled two new kits for the 2010 Range Rover Sport, one dubbed the RS300 Cosworth and the other the RS600 Supercharged.

The diesel-powered 300 hp RS300 has a Cosworth-tuned TDI engine, and comes with 22-inch wheels, new front mesh grille, custom body kit, custom leather interior, carbon fiber engine cover, numbered conversion plaque and Cosworth exterior branding.

The supercharged 600 hp RS600 has a Kahn-tuned 5.0L V8, 22-inch wheel, complete wide-arch body kit, mesh front grille, boot and roof spoiler, quad exhaust system, “welcome” lighting package and a custom leather interior.

The kits are available on special order straight from Kahn Design.