The glamour of an American motor show wouldn't be complete without a new muscle car - and Ford delivered the goods with its Mustang Convertible. Based on the same platform as its coup© sibling, the drop-top has a fabric hood and is powered by a 210bhp 4.0-litre V6 or a 300bhp 4.6 V8. The new model goes on sale in the US in the spring, with specialist importers likely to be taking orders in the UK soon.