The Porsche is again in the market with the limited-edition homologation of the 2007 GT3 RSR racing car, built to meet FIA GT rules. Rumors are in the market that racing car and the RS will get the 3.8-liter flat-six, instead of the 3.6-liter engine. The RS is a lightweight car with the Carrera 4's wide rear fenders, a wider rear track, more aggressive wing, and modified front spoiler lip. Weight savings include a carbon-fiber wing top, lots of composite bodywork, and lightweight glass are the core components of the 911 GT3 RS.
