Hot Wheels
Hot Wheels for collectors: the 2026 Treasure Hunts and Super Treasure Hunts listed by case A to Q, with Mattel codes and the signs that set them apart from regular mainline cars. Mark what you Have and Want.
Treasure Hunts and Super Treasure Hunts: what they are and how to find them in the mainline
The Hot Wheels mainline is the everyday range of carded cars, a few hundred new ones every year; in 2026 the collector number on the card reads “N/250”. Most Hot Wheels cars are made in 1:64 scale, as Mattel puts it. The mainline reaches stores in cases, and each year's cases are lettered A to Q; the letters I and O are left out, which makes 15 cases.
Each case letter has two chase cars assigned to it. A Treasure Hunt (TH) is a car of its own within a series, with ordinary paint and plastic wheels, given away by a circle-flame logo on the body and the same logo on the packaging. A Super Treasure Hunt (STH) is an upgraded version of a regular car: Mattel calls it hard to find and gives it Spectraflame paint and Real Riders rubber tyres, and collector guides add a TH on the body and a gold circle flame on the card. Treasure Hunts go back to 1995 and Super Treasure Hunts to 2007; Mattel does not say how many are packed per case.
Treasure Hunts and Super Treasure Hunts are kept as separate checklists for each year, and each one is completed on its own. Cars are labelled with their case letter, since that is how collectors look for them, and each car card gives the Mattel code, mainline series and colour. Mattel also runs the Red Line Club with models of its own for adult collectors; those are not in this section yet.