1:18 scale by AutoWorld. HOT HOT 1:18 scale funny car. 1971 Mustang Connie Kalitta"Bounty Hunter". The 1:18 scale is an ideal size for Auto World to create such a detailed model, with room to include all the features that bring a funny car to life; these die cast cars will have over 100 parts. Features include soft rubber tires, authentic replica plastic funny car bodies styled just like the real thing with historically accurate graphics, detailed wheels, and manufacturer-specific engines that are fully wired and plumbed.