Computerized vehicle engine analyzers; Control cabinets specially adapted for vehicle traffic control equipment; Control cabinets specially adapted for vehicle traffic control equipment; Cruise controls for motor vehicles; Driver impairment detection device in the nature of a fingerprint recognition scanner that activates a timing mechanism to determine the driver's fitness to drive the vehicle; Electronic controls for gasoline engines for land vehicles; Electronic motor vehicle ignition tuning kits comprised of an electronic control unit that monitors engine performances and delivers re-calculated sensor values to the original engine control unit to increase engine performance; Mechanical and electronic measuring machines for identifying and analyzing structural damage to vehicles; Simulators for driving or control of vehicles; Speed limiters for limiting vehicle engine speed, namely, aftermarket, add-on devices for vehicles in order to limit the maximum speed output of an automobile; Speedometers for vehicles; Vehicle safety equipment, namely, electronic deer alerts; Vehicle safety equipment, namely, electronic vibration, shock, motion, angle, temperature and voltage monitors; Vehicles breakdown warning lamps