Companies that build performance sports cars, trying to sell steak and sizzle at the same time, continue to offer vehicles that increasingly erase the space between street cars and track cars.

McLaren, Lamborghini, Ferrari and Porsche all build vehicles now that are street legal but track-ready, for the driver who either wants to take his or her European road warrior for a few laps around a track, or, just as likely, wants other people to think he or she actually does so.