Hot Wheels Redline Mach 1. A collectible 1/64 scale diecast model car. It is an orange custom Mustang with Redline® five-spoke tires. A Hot Wheels Red Line Club special. In addition, it is #2 of 4 from the Selections Series. This Hot Wheels Redline Mach 1 has never been opened. Therefore, it is in mint condition.