Why do race cars have big wheelbase?

Is a BMW classified as a sports car? Who investigates plane crashes? How much downforce does a V8 Supercar produce? How powerful are f1 cars? Who has the most DNF's in NASCAR? Which years did A. J. Foyt race at Daytona International Speedway? Do Nascar drivers fly airplanes and jets? What is the smallest high school in South Carolina? Was Valentino the first Eddie Stobart lorry to be named after a man? Can spirits mess up your teeth? How old are the Rutledge sisters now? Is the horsepower the same in 1989 Indy 650? Where can you get a list of the cars driven by Richard Petty each year he drove? How much BHP does a BMW 330ci sport have? What is the average lap time at martinsville? Is Gilles Villeneuve related to Jacques Villeneuve? Who has the record of the fastest lap of bathurst in a v8 supercar? How many brands of motorbikes are there? What Year did Nigel Mansell become world champion? What is the largest car race track?