I take it you not from the UK or Europe? They were sold European wide as far as I know and were Renos "hot hatch" version of the Renault 5. The Renault 5 GT turbo was a 1.4 push rod engine running a T2 turbo on a carburettor. They were around 120bhp and 0-60 in 7.2 standard. They came in phase 1 and phase 2 models, the version above is a phase 2. This is all from memory so don't quote me exact figures.

Here are a few pics of mine, ran 20psi boost and was on the bump stops. HKS EVO6 exhaust: