Lamborghini Aventador vs 911 GT2 RS vs Mercedes SLS

Price: £242,280;
Engine: V12, 6498cc, petrol;
Power: 690bhp at 8250rpm;
Torque: 508lb ft at 5550rpm;
Gearbox: 7-speed automated manual
0-62mph: 2.9sec;
Top speed: 217mph;
Economy: 16.4mpg;
CO2: 398g/km;
Kerb weight: 1620kg (est, 1575kg dry);