The downward spiral continues for General Motors Corp., which earlier this month announces it will eliminate the U.S. market's oldest existing marque: Oldsmobile. Closely tied to the fate of the lame-duck division are two bespoke engines used only by Oldsmobile: the 4L DOHC V-8 (fitted only as the optional engine for the Aurora) and the 3.5L Twin Cam, used solely as standard equipment for the Intrique and as the base engine for Aurora. GM has not given definitive word regarding both ...

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