1992 Renault 21

Unusually, the Renault 21 was offered with disparate engine configurations. The 1.7 litre version featured an 'east-west' (transversely) mounted engine, but Renault had no gearbox suitable for a more powerful transverse engine: accordingly, faster versions featured longitudinally mounted (north south) engines. The two versions featured (barely perceptibly) different wheel bases: the engines were all relatively compact four cylinder units and the engine bay was large enough to accept either configuration without reducing passenger space. However, at a time when production technologies were relatively inflexible, the need to assemble differently configured engine bays on a single production line, along with the supplementary inventory requirements imposed both on Renault and on the dealership network, did compromise the Renault 21's profitability

In 1986, the R21 was launched. It had a razor-like design, which was different from contemporary cars of the era, e.g. the Ford Sierra (with its "jelly mould" design) and the Honda Accord (which had a straight-edge design).