A larger unit, the 1289 cc engine from the new Renault 12, was fitted to the Renault 10 for the Motor Show in October 1970, giving birth to the Renault 10-1300. Although the engine mounted at the back of the Renault 10-1300 was in most respects identical to that fitted at the front of the Renault 12, the unit in the older car was effectively detuned, with a lowered compression ratio and a listed maximum output of SAE ( DIN) whereas the unit in the Renault 12 was advertised as providing SAE ( DIN). In effect this placed Renault in the bizarre position of offering two competing models in the same market category, but the older rear engined design came with a listed price 1,000 francs (approximately 10%) lower and a top speed of 135 km/h (84 mph) as against 145 km/h (90 mph) for the entry level Renault 12. The 1108cc version of the engine was also offered for 1970, but now only when combined with the Jaeger "button operated" semi-automatic transmission which had been offered in earlier versions of the car since 1963.