Apparently they had 10 of them, that travelled all over US from thirties to late fifties with a fleet of cars and a giant tent to promote GM activities..There are 4 left . 1 sold at B-J FOR 4 MILLION Billy Graham, even used one, after they (GM)stopped touring... They have dual front wheels, with a posi type unit to allow turning They would be real scary, to drive under a overpass today!