F500 is a single seater class in scca.Like a large go cart with a full single seater body.Open wheels.Powered by a 500cc 2 stroke.Weighs around 600 lbs?Many are faster than a FF2000.Can be hauled on a snowmobile trailer.Can probably pick up a good used one for less than $10,000.Inexpensive,easy to maintian.A lot faster than a Viper at the track. Bruce