The 1968 Grand Prix received a new "beak-nose" grille and bumper with concealed headlights as well as a revised rear deck and bumper with L-shaped taillights. Side reflector markers were added to meet a new federal safety mandate. The convertible was discontinued, leaving only the hardtop coupe. Interior trim only received minor changes from 1967 aside from revised door panels. This would be the final year for the Grand Prix to be based on the B-body full-sized car platform.

The standard 350 HP 400 CID V8 was unchanged from 1967 though there were some slight revisions to meet the 1968 emission regulations for both the US and California. Both optional 428 CID V8s received higher power ratings of 375 HP for the base version and 390 HP the HO with the addition of more radical cam timing.

Production:

Grand Prix Coupe: 31,711

Available Engines:

• The 350 HP 400 CID four-barrel V8 remained the standard engine.
• A 265 HP 400 CID two-barrel was the step-down optional engine
• A 428 CID V8 with four-barrel rated at 375 HP
• A 428 HO option with four-barrel and 390 HP.