The 2013 Lamborghini Aventador is available as a 2-door, 2-seat coupe. Starting at $397,500, the 2013 Lamborghini Aventador Coupe is powered by a 6.5L, 12-cylinder engine mated to an automatic transmission that returns an EPA estimated 11-mpg in the city and 18-mpg on the highway. The top of the line 2013 Lamborghini Aventador Roadster, priced at $441,600, is powered by a 6.5L, 12-cylinder engine mated to an automatic transmission that returns an EPA estimated 10-mpg in the city and 16-mpg on the highway.