Chrysler has replaced its head of design with Ralph Gilles, the designer responsible for its only widely successful model, the 300C.

Trevor Creed, the former head, is retiring at the end of the month.

Creed led Chrysler to launch a raft of distinctive products to its global markets, including the PT Cruiser hatchback and Viper supercar.

Reports suggest that Gilles wants to add more attention to detail in future products, and may abandon Chrysler's more angular designs in favor of a swooping, aerodynamic look that will be perceived as more fuel efficient.