the TS. Automatic transmission was optional on the R20 TL and R20 GTL. Quartz Iodide Headlights optional on all R20 models. 1976 - The 1647 cc engine from the R20 had the power rating increased to . August 1976 - The updated R1275 version replaced the original R30 TS (R1273), with some minor engine modifications and now with grey headlight surrounds, a new fuel lid, and with regular doorhandles replacing the upside-down ones originally used. The power of the V6 dropped from . Late 1977/early 1978 - The R20 L was dropped from the range because of slow sales, its presence was only justified by its price. All models got a restyled instrument panel visor. Optional steel wheels with Michelin TRX tyres. July 1977 - Introduction of the R20 TS. It had a new 1,995 cc engine (rated at ), with the choice of a 4-speed manual or 3-speed automatic gearbox. The equipment level remained largely the same as the R20 GTL. October 1978 - Introduction of the R30 TX. It had a more powerful Bosch K-Jetronic fuel-injected version of the 2664 cc V6 engine, 5-speed manual or 3-speed automatic gearbox. It also had alloy wheels, electric windows all-round, electric sunroof, velour upholstery, and front and rear head restraints. 1979 - Revisions to all models: driver's side rear fog light and rear seat belts. The R20 TS got a new cooling fan, inertia reel rear seat belts, a new windscreen wiper switch, and the choice of a 5-speed gearbox. The R30 TS got a more powerful engine, and small pocket in the drivers sun visor. 1979 - Introduction of the R20 LS. It had the same mechanical specification as the R20 TS but the equipment specification of the R20 TL. November 1979 - Introduction of the R20 Diesel (in TD and GTD forms) with a new 2,068 cc Diesel engine, 5-speed gearbox, negative offset front suspension, and larger four-stud wheel rims. The R20 TD was equivalent to the R20 TL/LS, while the R20 GTD: equivalent to the R20 TS only it added power-steering. 1980 - All models got a pantograph driver's side wiper, and a completely restyled interior with new dashboard and instrument panel from the Renault Fuego. All petrol models got a new type of automatic transmission option. R20 TL/GTL got new alternator with built-in electronic regulator and new 3-spoke wheel rims. The R20 TS now had the wheel