This weekend a new era begins in American sports car racing with the Rolex 24 at Daytona to kick off the new United SportsCar Championship, the freshly inked union between the Grand Am and American Le Mans Series. There'll be a wide variety of machinery lining up on the grid at the Florida speedway, including race-ready versions of the sports cars you can drive on the road, plus Daytona Prototypes, Le Mans Prototypes and even the DeltaWing. But at the front of the pack will be the Audi R8 5.2 FS
Some vehicles are made to be stretched. Others, less so. A Lincoln Town Car, for example, is a good platform for a limo. A Mercedes-Benz S-Class, sure. A Rolls-Royce Phantom. We could even see the attraction behind a Cadillac Escalade limo, if we had to. But not an exotic supercar.