The 2012 BMW 528i is a car with an unusual breadth of personality, ranging from comfortable econo-sedan to sporting four-door. And this efficient new twin-turbo four allows it to pull off these character switches with conviction. Yet it's not a car of split personality. The satisfying way in which it gels makes it easy to understand why this is the best-selling sedan in its class, worldwide.
Why is it that people always get the twin-power engine confused with twin-turbo.....?
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