Hot Wheels Custom Super Treasure Hunts Lot of (3) 2007 TH RR-GTO & Caddy is a set of three diecast cars from the Hot Wheels Super Treasure Hunt series. The cars included are a Pontiac GTO, Road Runner & Cadillac V-16. These cars are in 1:64 scale and were manufactured in 2007. They are part of the Cars character family and are highly collectible. These are actual treasure hunts customized into STH.