Sierra

The Ford Sierra replaced the best-selling Cortina with aerodynamic styling Britain nicknamed the jellymould, and slowly won the country over across 1.3 million UK sales. A guide to the ordinary Sierras, the XR4i and XR4x4, the Sapphire saloons, why survivors are so rare, buying checks and values.

The Ford Sierra RS Cosworth turned an ordinary family Ford into a Group A touring-car weapon, with a turbocharged Cosworth engine, a whale-tail wing and, in RS500 form, near-unbeatable race performance. A guide to the three-door, the RS500, the Sapphire and the 4x4, the theft and cloning problem, and what to look for when buying one.