For the post-war market Rover had a new engine that had been in preparation since the late 1930s with overhead inlet and side exhaust valves. It was made in two versions for the car, the Rover 60 had a four-cylinder unit of 1595 cc and the Rover 75 had a six-cylinder version of 2103 cc. The gearbox and traditional Rover freewheel were kept unchanged from the previous model. To go with the engine a new car was prepared. Although the body was similar in styling to the Rover 12 and 16, many of the body panels were in fact new but the wings and bonnet from the 12 were carried over. The car was 0.5 inch wider outside than the 16 but by making better use of space this translated to 2.5 inches inside. It was 4.5 inches shorter in the wheelbase. Also new, and a first for a Rover, was independent front suspension but the brakes remained a hydraulic/mechanical hybrid system. Rather than having a complete chassis, the new frame, which was a box section, was stopped short of the rear axle and the rear semi-elliptic springs were attached to the body. This allowed the rear axle travel to be increased and an improved ride resulted. Two body styles were available, a 6-light saloon and 4-light sports saloon. The 6-light saloon had a rear quarter window while the 4-light sports saloon had the lack of the rear quarter window. The cars were expensive at £1080 for the Rover 60 and £1106 for the Rover 75, and with early post-war production problems and material shortages it was never intended that the cars would be produced in large numbers. Eventually, 1274 of 60 and 7837 75 models were made before the car was replaced by the all-new Rover 75 at the end of September 1949.
Powertrain
The engine and gearbox from the car were also used as the basis for those in the original Land Rover Series. About six "75" models were produced with triple SU carburettors – a throw back to Rover's pre-war 'Speed' performance models; one survivor has an over-bored 2,400 cc engine; the basis of the Marauder 100 engine. Rover's new 75 was announced on 23 September 1949, it replaced this car.
Later 75
The "75" was also a part of marque's P4 range from 1949 to 1959. The 75 name was also used for Rover's 1999–2005 flagship.
