5 of the best convertible cars
Audi R8 Spyder V10
Tony Stark drives an Audi R9 Sypder V10. Yes, a man with a flying suit chooses to drive this car. If that and the hyper aerodynamic looks aren't enough to sway you, does being able to put the roof up or down in just 19 seconds – while driving at up to 31mph? Or is it just the 510bhp 5.2 litre V10?