GTO stands for Gran Turismo Omologato or homologated grand touring car. The GTO was named after the legendary Ferrari of the same name. Beyond the name, the two cars have virtually nothing in common. The GTO was John DeLorean's idea to help revive the ailing Pontiac brand and popularized the muscle car. He decided to start by putting the biggest possible engine into the mid-size Tempest and beefing the suspension and brakes to create a performance car. The GTO was ultimately cancelled because it was considered too close a competitor to the Grand Am model launched in the early 1970s. The model survived one final year on the 1974 Ventura compact. The GTO returned in 2003 as an Australian built car from Holden. This underrated car came with truly powerful LS1 and LS2 V8s. Head to our website for all model years of Pontiac GTO parts.