Chevrolet Chevelle Malibu Classic
1975 Chevrolet Chevelle Malibu Classic (1973-77 generation): The Malibu was redesigned for the 1973 model year. Models included the base Chevelle Deluxe, mid-range Malibu and the top-line Laguna.
For 1974, the Deluxe was dropped, and the Malibu became the entry-level Chevelle. The Laguna trim package was replaced with the Malibu Classic that had the unusual arrangement for that time of 4 square headlights and made its way to the dealers in 1977 year model, offering the Chevy built inline six 250 CID as the base engine. The Laguna S-3 model was introduced to replace the SS, and continued through 1976.
Source: Wikipedia, 2012