For 1968, the Full-sized Chevrolets received some changes but were quite similar to the 1967 models, though they had grown one inch to . Chevrolet's new grille design bore a strong resemblance to Cadillac's, but Bel Air's dual round taillight design was strictly Chevrolet. In an unusual move, the taillights were mounted in the bumper. In 1968 the U.S. additional safety features were required in all motor vehicles, bringing about a new standard in car safety. These features included shoulder belts for outboard front-seat occupants and side marker lights. Chevrolets with optional V8s got the engine size, in cubic inches, displayed as part of the front side maker lights.