GM's EcoTec family dates back to the late 1990s, with the Gen III 2.0-liter turbo-four going into production in 2013. The ...
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BMW's Quad-Turbo Diesel Sedans: A Forgotten Marvel
BMW's quad-turbo diesel engines, once offered in the M550d and 750d models, delivered sports car-rivaling performance and impressive fuel economy.
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