Which first-generation Mustang is the most collectible?

First-gen Mustang collectibility runs from accessible fastbacks all the way to homologation specials. Here is the order the market puts them in.

The top-tier collectibles

• Boss 429 (1969-1970): Only 1,358 built so Ford could race the 429 in NASCAR. The blue-chip first-gen Mustang.
• Shelby GT350 and GT500: Carroll Shelby's cars, with the 1965-1966 GT350 and the big-block GT500 leading.
• Boss 302 (1969-1970): The Trans-Am homologation car, a high-revving small-block icon.
• 428 Cobra Jet fastbacks: The 1968-1970 Cobra Jet cars are serious muscle and strong investments.

The accessible favorites

If the homologation cars are out of reach, the 1965-1966 fastback and the 1969-1970 Mach 1 carry the demand for everyday collectors. Original GT-optioned cars add value across every year.

Buyer's note

The expensive cars are heavily cloned, so a Marti Report and verified VIN and engine codes are essential before paying top money for any Boss, Shelby, or Cobra Jet car.