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Re-activateIn your April 2012 automobile issue, you say the Volt (shown) gets 35 miles on battery and then 32 mpg, costing more per mile than many hybrids. But you also say it gets a composite of 61 mpg. Please explain the math.
Art Morris Sherwood, OR
Editor's note: The composite assumes a trip of 50 miles, 35 miles of which are in electric mode, with an energy equivalent of 99 mpg. In gas mode, the Volt gets 32 mpg.
In "Stopping Crashes With Smarter Cars" you cite experts who say the past 50 years have been about surviving crashes and the next 50 will be about preventing them. I've been teaching safe driving since 1965, and I've always taught how to prevent crashes.
Al Cinamon Yonkers, NY
"Top Tires" says your Ratings are based on vehicle and tire type. I've been told that I should use specific tires that generate less road friction in support of the electric engine of my two hybrids. Do such tires work as well for mileage and all-wheel-drive purposes?
Mike Hahl Delray Beach, FL
Editor's note: All cars will get the best fuel economy using tires with low rolling resistance. Our tests have shown that the Continental ProContact EcoPlus+ and Michelin Energy Saver A/S are excellent all-season tires with very low rolling resistance and good tread life. Both are offered in sizes that fit most hybrids.
Some cars you profiled require premium gas. Is 91 octane enough, or is 93 necessary?
Jack Castina Port Jefferson, NY
Editor's note: Premium gas is usually 91 octane or above. Use whatever your owner's manual specifies.
In your car issue you use the term "fit and finish" a lot. What does that mean?
Tom Neirinckx Huntley, IL
Editor's note: It refers to the quality of interior materials and how well they fit together.
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