The Pontiac Firebird was built by the Pontiac division of General Motors between 1967 and 2002. The Firebird was introduced the same year as the automaker's platform-sharing model, the Chevrolet Camaro. This coincided with the release of the 1967 Mercury Cougar, which shared its platform with another pony car, the Ford Mustang.

Pontiac's upmarket version of Chevrolet's Camaro ponycar appeared in mid-1967. Brought to market under John Z. DeLorean's watch at Pontiac, the original Firebird offered deluxe accoutrements, in addition competitive ponycar performance. From 1967 to 69, Firebird offered an unusual single-overhead-camshaft inline six, available with a 4-bbl. carburetor in Sprint models. Pontiac's 326- and 400-cid engines comprised the V-8 offerings. Firebird was little changed for ’68, with deleted vent windows and added side-marker lamps among its minor updates. A redesigned SOHC six was touted, while the mid-year 340-hp Ram Air II 400 V-8 reigned as the year's most powerful engine. The Firebird was restyled for 1969. During the year, the first Trans Am Firebird was released; 689 coupes plus eight convertibles were produced. A 400-cid V-8 was standard in Trans Am and Firebird 400 models. The 400 model’s optional Ram Air IV V-8 promised 100 mph quarter-mile acceleration. The 1967-'69 Firebirds are relatively scarce, compared to Camaros of the same vintage. The '69 trades just slightly more often than '67-'68 versions. Genuine ’69 Trans Ams will always be blue-chip Firebirds.
Source: WikiPedia, Hagerty