The IMP was introduced by Hillman in 1963. It was a compact car designed to compete with the Mini, incorporating a series of innovative features for its time. During its years of production, the IMP had different versions: Base Model, Californian, Deluxe, Super and Zimp (Zagato made modification). All of these cars were rear wheel drive with a 875cc inline four engine. Their differences were mainly in the interior details and sporty look, depending on the variant. Power could also vary lightly, but all IMP´s had a four speed manual transmission. The Hillman IMP was produced until 1976.