15. IAN CALLUM (56, British)
Design director, Jaguar
Key cars: Aston Martin DB7, Ford Puma, 2011 Jaguar XJ
Like some musicians, there are car designers who have only one or two styles in them. Callum's not one of them, with a diversity and breadth of brands and great-looking cars from hot superminis to luxury sedans and supercars. He made Jag relevant again.