Tom Walkinshaw Racing
Overview
 
Not to be confused with Walkinshaw Performance
Walkinshaw Performance
Walkinshaw Performance, is an automotive company, involved in motor racing and the production of high performance sporting cars for regular road use...

, the business founded by Tom Walkinshaw following the collapse of TWR.

Tom Walkinshaw Racing (TWR), was an auto racing
Auto racing
Auto racing is a motorsport involving the racing of cars for competition. It is one of the world's most watched televised sports.-The beginning of racing:...

 team and engineering firm founded in 1976 by touring car racer Tom Walkinshaw
Tom Walkinshaw
Tom Walkinshaw was a Scottish racing car driver and the founder of the racing team Tom Walkinshaw Racing...

.
TWR started by modifying BMW 3.0 CSLs
BMW E9
-BMW 2.5CS:The last version of the E9 to be introduced was the 2.5CS in 1974. This was a response to the 1973 oil crisis, such that the buyer could choose the smaller, more economical engine. The engine, from the 2500 sedan, displaced and produced at 6000 revolutions per minute...

, but soon was contracted to head Mazda
Mazda
is a Japanese automotive manufacturer based in Fuchū, Aki District, Hiroshima Prefecture, Japan.In 2007, Mazda produced almost 1.3 million vehicles for global sales...

's works program in the British Touring Car Championship
British Touring Car Championship
The British Touring Car Championship is a touring car racing series held each year in the United Kingdom. The Championship was established in 1958 as the British Saloon Car Championship and has run to various rules over the years – "production cars", then FIA Group 1 or 2 in the late 1960s...

. The TWR developed RX-7
Mazda RX-7
Series 1 is commonly referred to as the "SA22C" from the first alphanumerics of the vehicle identification number. This series of RX-7 had exposed steel bumpers and a high-mounted indentation-located license plate, called by Werner Buhrer of Road & Track magazine a "Baroque depression."In 1980...

, with Win Percy
Win Percy
Winston "Win" Percy is a former motor racing driver from England. He competed in many classes of motorsport during his long career, but is perhaps most famous as one of the greats of touring car racing. Joe Saward of Autosport magazine once described him as being "often regarded as the World's...

 in the driving seat, won the title in both 1980 and 1981.
 
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