The production Lexus LFA features a new V10 engine and a carbon fiber-reinforced polymer (CFRP) body. CFRP materials account for 65 percent of the LFA's body composition by mass. The LFA went into production in late 2010, with a base price of US$375,000. A circuit-tuned variant debuted in 2012 with a base price of US$445,000, making it the most expensive Japanese road car ever built. Production ended in December 2012 with 500 vehicles completed, the final version being a Nürburgring Package model