Denis S. Jenkinson or Jenks (1921-1997) was a journalist deeply involved in motorsports. As a reporter of the UK-based Motor Sport magazine, he covered Formula 1 and other races all over Europe. Auto racing (also known as automobile racing or autosport) is a sport involving racing automobiles. ... Formula One, abbreviated to F1 and also known as Grand Prix racing, is the highest class of single-seat open-wheel auto racing. ...

DSJ loved to race Porsche cars in his own right and coined the term wischening (pronounced as if in German) for the manner in which one may corner successfully in a Porsche 356. He served as navigator for world champion motorcycle outfit racer Eric Oliver. Most famously he was navigator for Stirling Moss during the 1955 Mille Miglia. His book "The Racing Driver" was based on his experience as navigator and is a true classic worthy of any motorsports literature collection. His "pacenotes" while navigating with Stirling Moss were among the first leading up to today's use of pacenotes in rallying. He went on to write several other motorsports books about Porsche, Frazer Nash, the Jaguar E-type, Juan Manuel Fangio, the Schlumpf Collection and a particular Maserati. Porsche (), properly pronounced as a two syllable word (porsh-uh, IPA: pɔrʃʌ) , is a German manufacturer of sports cars, founded in 1931 by Ferdinand Porsche, the engineer who created the first Volkswagen. ... Porsche 356 Speedster Porsche No. ... Sir Stirling Moss OBE (born September 17, 1929 in London) is a British auto racing driver. ... The Mille Miglia (Thousand Miles) was an open-road endurance race which took place in Italy twenty-four times from 1927 to 1957 (thirteen before the war, eleven from 1947). ... In rallying, pacenotes are a commonly used method of accurately describing the route to be driven in extreme detail. ... Sir Stirling Moss OBE (born September 17, 1929 in London) is a British auto racing driver. ... Rallying (international) or rally racing (US) is a form of automobile racing that takes place on public roads with modified production or specially built road cars. ... Frazer was a Formula One constructor from Britain. ... A 1963 Series 1 3. ... Juan Manuel Fangio (June 24, 1911 - July 17, 1995) was a legendary Argentinian racing car driver. ... The Musée National de lAutomobile de Mulhouse is located in Mulhouse, France and houses the Schlumpf Collection of classic automobiles. ... Present Maserati logo Maserati is a famous Italian manufacturer of racing cars and sports cars, established in 1914 in Bologna. ...

Jenkinson also developed the classification of a driver's effort into "tenths". 10/10ths being the highest, attained by only a few drivers in history.