Good timing with the new Bugatti Grand Sport (2009) hypercar. The polar ice caps are melting and the world’s in the middle of the worst financial crisis since John Steinbeck was still scratching around in the dust bowl looking for a pencil, yet Bugatti manages to gauge the zeitgeist perfectly and unleash a £1.5m convertible supercar that emits 596g/km CO2. Sleeping polar bears? One little Bugatti isn’t going to hurt, and anyway, there’ll always be sufficient disgustingly rich people to buy a truly outrageous car like the drop-top Veyron Grand Sport. So how fast is the world’s fastest hair dryer? As fast as the regular Veyron, at least with the roof in place when you can insert the second key to engage the top speed mode that drops the car closer to the ground and tweaks the angle of the spoilers. Do that, find enough road and you’ll hit 253mph. With the roof off, you can’t use the second key and are limited to a mere 224mph. Pah! What about p...