The MG R-type is a
motor car
A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods.
The year 1886 is regarded as t ...
that was produced by
MG in 1935. It was designed for competition use and was a development of the
Q-type.
The car used a tuned short-stroke (73 mm) version of the bevel-gear driven
overhead camshaft
An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion cha ...
engine from the 1928
Morris Minor
The Morris Minor is a British economy family car that made its debut at the Earls Court Motor Show, London, in October 1948. Designed under the leadership of Alec Issigonis, more than 1.6 million were manufactured between 1948 and 1972 in ...
and
Wolseley 10. This had already been highly tuned for use in the Q-type and was further modified, especially in the input area, to improve reliability. It was fitted with a Zoller
supercharger and produced at 7200 rpm. The gearbox was a four-speed
preselector
A preselector is a name for an electronic device that connects between a radio antenna and a radio receiver. The preselector is a band-pass filter that blocks troublesome out-of-tune frequencies from passing through from the antenna into t ...
type unit. At the rear the
differential in its aluminium casing was fastened to the chassis and drove the wheels through short shafts with sliding splines and
universal joints
A universal joint (also called a universal coupling or U-joint) is a joint or coupling connecting rigid shafts whose axes are inclined to each other. It is commonly used in shafts that transmit rotary motion. It consists of a pair of hinges loca ...
.
The revolutionary Y-shaped steel chassis had a backbone that divided around the engine and gearbox, and was very light. The suspension was independent all round, making a first for MG and possibly the British motor industry, and used wishbones and longitudinal torsion bars allowing a large amount of wheel travel to allow for the poor surfaces on many of the contemporary racing circuits, especially
Brooklands
Brooklands was a motor racing circuit and aerodrome built near Weybridge in Surrey, England, United Kingdom. It opened in 1907 and was the world's first purpose-built 'banked' motor racing circuit as well as one of Britain's first airfie ...
. Lever arm hydraulic
shock absorbers were used. The brakes were cable-operated using 12-inch (305 mm) drums and the wheels were wire spoked and secured by a centre lock nut.
The aluminium single-seat body had the appearance of a miniature Grand Prix racer, and was designed to be easily removable.
The car was offered to the public at £750 and the initial ten were sold to pre-selected customers. A further batch was planned but never happened. A car changed hands at auction in 2006 for £130,000.
The first major sporting outing was to Brooklands for the International Trophy where a six-car team including three works entries appeared, but the best result was a 6th place and none of the works cars finished. It was realised that the suspension was giving problems, mainly with the rear being too soft, and solutions were proposed but all work stopped when new boss
Leonard Lord
Leonard Percy Lord, 1st Baron Lambury KBE (15 November 1896 – 13 September 1967) was a captain of the British motor industry.
Background and education
Leonard Percy Lord was born on 16 November 1896 and was the youngest child in his family ...
closed the MG Racing Department. Private entries to competition continued and the works cars were sold to the Evans family who already owned one of the other cars.
Further reading
*
* {{cite book , last=Green , first=Malcolm , title=MG Sportscars , publisher=CLB International , year=1997 , isbn=978-1-85833-606-0
R
R
Cars introduced in 1935
Automobiles with backbone chassis