The Lexus LFA is a two-seat exotic sports coupe produced by Lexus as a concept car, "halo" vehicle, racing prototype, and production model. It is the second model in the F marque line of performance vehicles from Lexus, following the IS F. Three concept versions have been shown, each debuting at the North American International Auto Show with the LF-A designation as part of the LF Series concept line. The first LF-A concept premiered in 2005, followed in 2007 by a second LF-A with a more completely furnished interior and exterior. The third version of the LF-A, a roadster model, premiered in 2008. The production model, trademarked LFA, was shown at the Tokyo Motor Show in October 2009. The production Lexus LFA features a new V10 engine and a carbon fiber-reinforced polymer (CFRP) body. The use of CFRP materials, which account for 65 percent of the LFA's body composition by mass, is to reduce overall weight for improved performance. The LFA is scheduled to go into production in late 2010, with a projected run of 500 vehicles at an estimated base price of $US350,000-375,000. A circuit-tuned variant is scheduled for 2012.