2012 BMW 528i

We've been skeptical of claims that direct injection and turbochargers could replace displacement while returning sky-high fuel economy since the beginning. Our observed mileage with many such engines has suggested that potential fuel savings are being overstated, but in fairness, making maximum horsepower takes fuel regardless of the displacement. Our leadfoot, hit-the-redline driving style prioritizes quickness far above efficiency, and we manage to wring less-than-optimal mpg figures out of

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