When you look at its pricing, performance capabilities and styling there aren't too many cars that can live with Jaguar's new F-Type V8 S (that's the top-of-the-line model with almost 500 horsepower). Chris Harris thinks the Porsche 911S Convertible and the Aston Martin V8 Vantage Roadster are its closest rivals so takes all three out to see how they compare on the road, track and as posing machines. These are all highly capable, drop-dead gorgeous drop-top sports cars.

So when it comes down to the crunch, it's all about what badge you prefer to have on the back of your ride and whether you prefer your engine supercharged or naturally aspirated.