2010 Mazda Mazdaspeed3 Long-Term Road Test


2010 Mazdaspeed 3: Respectable Fuel Economy So Far

December 18, 2009

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I'm a little surprised to see that our 2010 Mazdaspeed 3 is maintaining a 21.2 mpg lifetime fuel economy average so far. Normally, the performance cars in our fleet take a dive due to our heavy right feet. But as of our last Big List of Fuel Economy, we're matching the EPA's combined estimate of 21 mpg. Fuel range is fair, with about 300 miles being the most we've managed to squeeze from a tank of gas.

One other thing: the MS3 has an instant fuel economy readout. In general, this feature's value is debatable as average economy is more useful. Plus, most cars with instant economy show it via a silly bar-graph display or a readout number that bounces around constantly.

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Notably, the Mazda's computer seems to average-out that constant variation a little to give you a more stable instant number. It might not be as precise as those constantly fluctuating ones, but it saves you the trouble of constantly watching a varying display and trying to guess what your "instant average" is on your own. As you can see in the photo, I was going at about 75 mph on flat highway and had a display of 29.5 mpg, which I thought was kinda neat.

Brent Romans, Senior Automotive Editor

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Edmunds Insurance Estimator

The Edmunds TCO® estimated monthly insurance payment for a 2010 Mazda Mazdaspeed3 in VA is:

$145 per month*
* Explanation
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