Alleged street racing resulted in a vehicle leaving the roadway and crashing into the Casa Luis Restaurant on Jericho Turnpike this morning. The vehicle and building both burned, along with the occupant of the vehicle. The restaurant owners were asleep in the apartment above the restaurant but were able to escape without injury. Commack FD was assisted at the scene by Hauppauge, Kings Park and Smithtown FD's. Damage to the building was heavy.