cam, 11.5 compression ratio, big valves and tuned extractor exhaust system. The body was very light, featuring fibreglass doors, boot and bonnet panels, with plastic windows and a stripped interior. The factory said the car's weight was lowered by more than 25 percent. Its most famous outing was the 1974 "Press-on-Regardless" WRC, held in Michigan. The Rally was the US section of the World Rally Championship. The car that won the rally was a Renault 17 Gordini driven by Jean-Luc Thérier and Christian Deiferrer, with a similar car coming third. WRC victories {|class="wikitable" style="font-size: 95%; " ! No. ! Event ! Season ! Driver ! Co-driver ! Car |- | 1 | 26th Press-on-Regardless Rally | 1974 | Jean-Luc Thérier | Christian Delferrier | Renault 17 Gordini |- |} Timeline October 1971: Introduction of the Renault 15 and Renault 17 two-door coupés. The R15 TL had the 1289 cc engine from the Renault 12 (rated at ), whereas the R15 TS, R17 TL and R17 TS all had the 1565 cc from the Renault 16 TS (rated at for the R15 TS and R17 TL, and at injection for the R17 TS). The R15 TL, R15 TS and R17 TL all had a 4-speed gearbox whereas the R17 TS had a 5-speed gearbox. 1973: Fabric sunroof available on R17 TL and TS. 1974: R17 TS engine upgraded to 1605 cc. In late 1974, for the 1975 model year, the R17 TS is renamed R17 Gordini without any technical differences March 1976: New R15 and R17 ranges introduced as follows: R15 TL, R15 GTL, R17 TS and R17 Gordini. The R15 TL/GTL were mechanically identical to the earlier R15 TL, while the R17 TS and Gordini had the 1647 cc engine from the Renault 16 TX. 1979: R15/17 production ends. Versions References External links 15 17 Coupés Cars introduced in 1971 Group 4 (racing) cars Sports cars