Renault 20/30

The Renault 20 (R20) and Renault 30 (R30) are two executive cars produced by the French automaker Renault between 1975 and 1984. The most upmarket and expensive Renaults of their time, the two cars were almost identical with regard to sheet metal and mechanicals; the R30 was the larger-engined and more expensive of the two. The two cars were easily distinguished between each other from their differing headlight configuration – the Renault 20 had two single rectangular headlights whereas the Renault 30 had quadruple round headlights. The interior specifications differed substantially however with the Renault 30 having a higher specification in all models. Over 622,000 R20s and 145,000 R30s were produced in Sandouville near Le Havre, France.

The 20 variant won 1978 What Car? "Car of the Year".

The Renault 30 variant had a reputation for heavy deprecation. Motorists Guide reported the cost of a brand new 30 TX Automatic as £11,950 in May 1984; by June 1986 a good example was worth about £3,450 within the motoring trade.

Introduction
Launched in March 1975, the Renault 30 TS was marketed as Renault's flagship model and it was the first Renault with an engine having more than four cylinders since before World War II. It was one of the first cars (the other two being the Peugeot 604 and Volvo 264) to use the then newly introduced 2664 cc PRV V6 engine, which was developed jointly between Peugeot, Renault and Volvo; the PRV produced 130 PS (96 kW) and could power the R30 to a top speed of 185 km/h (115 mph). The vehicle's hatchback styling was derivative of the extremely successful Renault 16.

The more affordable Renault 20, which was presented at the Paris Salon in November 1975 (exactly eight months after the Renault 30 TS) and used the same hatchback body styling as the R30 but with two rectangular headlights instead of the R30's quadruple round lights. The Renault 20 was essentially a replacement for the discontinued Renault 16, albeit in a rather larger body shell. Under the bonnet, the R20 had the smaller four-cylinder 1647 cc engine (from the Renault 16 TX) rated at 90 PS (66 kW). Other technical differences between the 20 and 30 were that 20 used drum brakes at the rear wheels, 13 inch wheel rims, and a smaller 60-litre fuel tank. The 20 came in three different trim variations: L, TL and GTL. The two cars were effectively two 'badge engineered' versions of the same car with separate numeric classification. The R20 received an all-new 2068 cc diesel engine in November 1979, Renault's first diesel automobile.

Both the 20 and 30 were advanced in terms of safety, featuring front and rear crumple zones as well as side impact protection.

Reliability issues, such as niggling mechanical faults (which sometimes proved expensive to fix) plagued both cars throughout their lifetimes. This was a factor in the cars heavy deprecation on the used car market in the UK. Other large cars with steep deprecation included the Peugeot 604 and Rover SD1. Rust was another major concern (in a Belgian owner referendum 70% of owners named it as the car's biggest problem); as a response Renault improved rust protection and began offering a five-year warranty against rust on 1 January 1982. Shortly after their introduction, it soon became quite clear that the Renault 20 was too underpowered to cope with the overall size and weight of the car and that the Renault 30 was seen as too expensive for what was effectively the same car. In response to this, the R20TS was introduced, and used a new four-cylinder 1995 cc overhead camshaft engine rated at 109 PS (80 kW) (which was shared with the Citroën CX and later the Peugeot 505). The new 2.0-litre engine was universally regarded as a big improvement. The following year (October 1978) saw the introduction of the R30 TX, a more luxurious fuel-injected version of the R30 TS, then the R20 Diesel in late 1979. By late 1981, all 1.6-litre R20s were discontinued, leaving the LS 2.0 as the smallest model in the range.

In 1980 the NG1 five-speed transmission was switched for the longer-geared and smoother shifting 395 unit. In July 1980, the 2.2-litre fuel-injected R20 TX was added to the range, followed by the R30 Turbo Diesel one year later. The R30 Diesel Turbo has the trim of the R30 TX, albeit with unique alloys, with an engine delivering 85 PS (63 kW) derived from the naturally aspirated diesel engine. In a few markets this engine was also available as an R20. The range was facelifted for the 1981 model year. Production of the 20 and 30 ceased on 16 October 1983 to make way for the Renault 25.