First drive: Aston Martin Rapide

For a lesson in how not to make a four-door GT car you don't have to look very far. Just take a sneaky peak at the bulbous Porsche Panamera - a podgy people mover that makes a Ssangyong Rodius look well-proportioned.

Thankfully Aston Martin knows a thing or two about design - if you discount the Cygnet - and have pulled off a masterstroke with its Rapide.