直列4気筒
Although the standard Renault 5 has a front-mounted engine, the 5 Turbo featured a mid-mounted Cléon-Fonte with fuel fed by Bosch K-Jetronic fuel injection and a Garrett AiResearch T3 turbocharger OHV 2 valves per cylinder Inline-four engine placed behind the driver in mid-body in a modified Renault 5 chassis. In standard form, the engine developed at 6000 rpm and maximum torque of at 3250 rpm.