Past owners of the notoriously wheezy diesel Rabbit will find it hard to believe, but this blurry streak is also powered by a four-cylinder diesel. Two of them actually: one for the front wheels and one for the rear. Built for use in front-loaders and forklifts, the 4.4-liter engines were specially tuned to 750 horsepower each by U.K. construction-equipment company JCB as part of an effort to set a new speed record for a diesel-powered car. It paid off. On August 23, Andy Green-holder of the current overall land-speed record of 763 mph-piloted the svelte, ice-cooled JCB Dieselmax to a new record in the Utah desert, averaging 350 mph in two 11-mile runs.