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Old 06-09-2008, 09:53 AM   #2 (permalink)
Shawn D.
Harebrained Idea Skeptic
 
Join Date: Jun 2008
Location: Alpharetta, GA
Posts: 211

The White Car - '84 Mercedes-Benz 300td
90 day: 28.84 mpg (US)

The Blue Car - '86 BMW 535i
Last 3: 23.86 mpg (US)
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Those "types" are marketing descriptions, not engineering descriptions.

Generally, though, the more sporty the tire (i.e. lower profile and higher speed rating), the heavier it will be. However, the stiffer sidewalls would be better for rolling resistance. On the other hand, the tread compounds are softer for better traction, so the life will be shorter.
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