The vehicle, a 370Z, a two-seater, two-door car, was westbound on I-4 and witnesses said it was engaged in a street race with a mustang and another vehicle that were also westbound, troopers said. On reaching the Saxon Boulevard exit into Orange City/Deltona, the driver of the Nissan lost control of the vehicle and overturned multiple times. The driver was pronounced dead on scene, trooper s said. Debris from the vehicle rolling over, struck another car, troopers aid. The crash remains under investigation, Montes said.