Opel DTM V8 engine
The Opel DTM V8 engine family is a series of prototype, four-stroke, 4.0-liter, naturally aspirated DOHC V-8 racing engines, designed, developed and produced by Opel, and specially tuned by German manufacturer Spiess, for the Deutsche Tourenwagen Meisterschaft, between 2000 and 2005. The Opel DTM V8 engine majorly based on GM Northstar L47 engine that same as Oldsmobile Indy Racing League engine unit.