Renault 5 GT Turbo
A "hot hatch" version of the 5, the GT Turbo, was introduced in 1985. It used a heavily modified four cylinder, eight-valve Cléon 1397 cc engine, a pushrod unit dating back to the 1950s. It was turbocharged with an air-cooled Garrett T2 turbocharger. Weighing a mere 850 kg (1,874 lb), and producing 115 PS (85 kW; 113 hp), the GT Turbo had an excellent power-to-weight ratio, permitting it to accelerate from a standstill to 60 mph (97 km/h) in 7.5 seconds. To differentiate it from the standard 5, it came with blocky plastic side skirts. Unfortunately, turbo lag was an issue, along with poor hot starting, and was considered rather difficult to control. The same engine was used, with similar issues, in the Renault 9 and 11 Turbos.
In 1987, the facelifted Phase II was launched. Major changes in the Phase II version included installing watercooling to the turbocharger, aiding the Phase I's oil-cooled setup, which extended the life of the turbo. It also received a new ignition system which permitted it to rev 500 rpm higher. These changes boosted engine output up to over 120 PS (88 kW; 118 hp). Externally, the car was revamped, with changes (including new bumpers and arches) that reduced the car's drag coefficient from 0.36 to 0.35. Giving the Phase II a 0–100 km/h time of 7.5 secs. In 1989 the GT Turbo received a new interior, and in 1990 the special edition Raider model (available only in metallic blue, with different interior and wheels) was launched. In late 1991 the Renault 5 GT Turbo was discontinued, superseded by the Clio 16v and the Clio Williams.
Source: Wikipedia, 2012