Complex sentence: The Oldsmobile Custom Cruiser is a large rear-wheel drive station wagon manufactured and marketed by Oldsmobile from 1971 to 1992 across three generations, sharing platorms with the Buick, Chevrolet and Pontiac full-size wagons.
Split into simpler sentences: The Oldsmobile Custom Cruiser is a large rear-wheel drive station wagon manufactured and marketed by Oldsmobile from 1971 to 1992. The Custom Cruiser shared platforms with the Buick, Chevrolet and Pontiac full-size wagons.