Mercedes Downsizes and Upgrades the S63 AMG

Bigger is better, right? That's been the prevailing wisdom in the automobile market, but consumers of luxury goods know better. Case in point: the newest Mercedes-Benz S63 AMG.
For the 2011 model, Mercedes has swapped out the enormous 6.2-liter V8 for a more efficient – and more powerful – 5.5-liter twin-turbo V8 with direct injection and fuel-saving start-stop engine management, coupled to the company's latest multi-clutch transmission. The result is 571 horsepower instead of 518, a four-and-a-half second sprint to sixty and improved fuel economy. Now that's our kind of downsizing.
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