Geneva Show 2012 Highlights: 2013 Lamborghini Aventador J

This is the Lamborghini Aventador J, a one-off, road-legal roadster that company boss Stephan Winkelmann says is a testament to his firm’s commitment to pushing the limits of design, despite increasingly rigid road car regulations.As such, it takes its name from the world motorsport governing body’s ‘Appendix J’ regulations, which define racing car class specifications. The J also invokes