The long-tailed McLaren F1 GT – and no, we're not missing an R at the end – was developed as a homologation special so that McLaren could field similarly extended F1 GTRs on the racing circuit. Only three examples were ever made: 54F1GT currently resides in Brunei. 58F1GT lives in Japan. But the final one – bearing the designation 56XPGT – was kept by the factory. That's the one you're looking at here, resplendent in dark metallic green and making a rare appearance at the 2015 Geneva Motor Show.