Actually, it was Clarkson himself who chose the Crossfire Roadster over the Audi TT Roadster and Nissan 350Z Roadster. Hammond preferred the Nissan and May the Audi (or was it the other way 'round?). Either way, each of the three chose a different car as their favorite, but it was Clarkson who liked the Crossfire best.

If you really pay attention to the show, they've been known to slam virtually every brand at one time or another, or at least dismissed a vehicle made by everyone at one time or another. Including Aston and Jaguar. Heck, Clarkson even derided an AMG something or other for the massive amount of torque it produced, calling it totally unusable (or something to that effect).