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I believe this was just posted by the EPA. Man, I really think BMW has reached the peak of ICE tuning with the B58. These efficiency numbers are unbelievable for an engine making at least 400 HP at the crank that isn’t a full hybrid.
Here it is next to G30, and just for giggles the Lexus ES 250, a naturally aspirated 4-pot.
Last edited by 8GranCouper; Today at 02:18 PM..
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