Question: The Y platform, or Y body, designation has been used twice by the General Motors Corporation, the first was for a group of entry-level compacts including the conventional front-engine compacts built by GM divisions Buick, Oldsmobile and Pontiac from 1961 to which year?
Sentence (from "Oldsmobile"): When it was phased out in 2004, Oldsmobile was the oldest surviving American automobile marque, and one of the oldest in the world, after Daimler, Peugeot and Tatra.
Relevant evidence: No