page_title: Rover Company
section_title: Experimental cars
hierarchical_section_title: Rover Company / History / Experimental cars
caption_attribution_description: English: Rover Jet Car
context_page_description: The Rover Company Limited was a British car manufacturing company that operated from its base in Solihull in Warwickshire. Its lasting reputation for quality and performance was such that its first postwar model reviewed by Road & Track in 1952 was pronounced finer than any but a Rolls-Royce. Rover also manufactured the Land Rover from 1948 onwards, which spawned the Range Rover in 1970, and went on to become its most successful and profitable product — with Land Rover eventually becoming a separate company and brand in its own right.
  Rover was sold to Leyland Motors in 1967, who had already acquired Standard-Triumph seven years earlier. Initially, Rover maintained a level of autonomy within the Leyland conglomerate, but by 1978, Leyland - by then British Leyland - had run into severe financial difficulties and had been nationalized by the British Government. Most of the assets of the former Rover Company were moved into a new BL subsidiary named Land Rover Ltd whilst the Rover marque itself continued to be used on other BL products which relied largely on Honda engineering.
context_section_description: Despite the difficulties experienced with the jet engine project, Rover was interested in the development of the gas turbine engine to power vehicles. In 1945, Rover hired engineers Frank Bell and Spen King away from Rolls-Royce to assist Maurice Wilks in the development of automotive gas turbines. By 1949, the team developed a turbine that ran at 55,000 rpm, produced more than 100 horsepower (75 kW), and could run on petrol, paraffin, or diesel oil. Rover's early turbine engines consumed fuel at a rate much greater than piston engines, equivalent to 6 miles per imperial gallon (5.0 mpg‑US; 47 L/100 km). Although fuel consumption was later reduced by using a heat exchanger, it was never as low as that of contemporary piston engines.
  In March 1950, Rover showed the JET1 prototype, the first car powered with a gas turbine engine, to the public. JET1, an open two-seat tourer, had the engine positioned behind the seats, air intake grilles on either side of the car, and exhaust outlets on the top of the tail. During tests, the car reached a top speed of 88 mph (142 km/h). After being shown in the United Kingdom and the United States in 1950, JET1 was further developed, and was subjected to speed trials on the Jabbeke highway in Belgium in June 1952, where it exceeded 150 miles per hour (240 km/h). JET1 is currently on display at the London Science Museum.
  Four further prototypes were built, the P4-based front-engined T2 and rear-engined T2A saloons, the rear-engined four-wheel-drive T3 coupé, and the front-engined front-wheel drive T4 saloon.
  Rover and the BRM Formula One team joined forces to produce the Rover-BRM, a gas turbine-powered sports prototype that entered the 1963 24 hours of Le Mans, driven by Graham Hill and Richie Ginther. It averaged 107.8 mph (173 km/h) and had a top speed of 142 mph (229 km/h).
  Rover also ran several experimental diesel engine projects in relation to the Land Rover. The 2-litre, 52 horsepower (39 kW) diesel unit designed and built by Rover for its 4x4 had entered production in 1956 and was one of Britain's first modern high-speed automotive diesel engines. Experimental projects were undertaken to improve the engine's power delivery, running qualities, and fuel tolerances. British Army requirements led to the development of a multifuel version of the 2.25-litre variant of the engine in 1962, which could run on petrol, diesel, Jet-A, or kerosene. However, the engine's power output when running on low-grade fuel was too low for the Army's uses. Rover developed a highly advanced (for the time) turbodiesel version of its engine in the mid-1960s to power its experimental '129-inch' heavy duty Land Rover designs. This 2.5-litre engine used a turbocharger built by Rover's gas turbine division as well as an intercooler. This was one of the first times these features had been incorporated on such a small-capacity diesel unit, but they were not adopted.
  After the Leyland Motor Corporation takeover, the Rover Gas Turbine was used in a number of Leyland trucks, including one shown at the 1968 Commercial Motor Show. Rover gas turbines also powered the first Advanced Passenger Train.
caption: Gas turbine experimental car
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