"In
1970, sheetmetal revisions gave the bodies a more squared-up stance following the coke bottle styling, and interiors were also redesigned. The 1970 Chevelle shared many sheet metal body parts with the 1970 Buick Skylark GSX, both are GM automobiles and have interchangeable sheet metal. They are also the only two muscle cars to share the same roofline. The 1970 Chevelle came in Sport Coupe, Sport Sedan, convertible, four-door sedan, a couple of wagons, and
coupé utility (the El Camino) body styles. Only three of these (Malibu sport coupe, Malibu convertible and El Camino pickup) were available with a choice of one of 2 SS options; RPO Z25 with the SS 396 (402 cid) engine and RPO Z15 with the new 454 cid engine. The base model was now simply called Chevelle in lieu of the former base 300 Deluxe, and was only available as a Sport Coupe or four-door sedan. In Canada, the base series retained its 300 Deluxe name, with appropriate badging on each front fender just behind the front wheel well. The 300 Deluxe 2-door sedan was cancelled and replaced by the base Chevelle Sport Coupe, a 2 door pillarless hardtop. "