Those who have had a hard look at their needs and still come to the conclusion that a full-size SUV would fit the bill officially have a new option. The Chrysler Aspen and Dodge Durango hybrids are now on sale and the EPA has determined that the pair have the best fuel economy of any such vehicles on the U.S. market. The Chrysler duo are officially rated at 20 mpg in the city and 22 mpg on the open road. Chrysler has opted to offer the Two-Mode hybrid trucks only with all-wheel-drive while GM's similarly powered Tahoe/Yukon can be had in rear- or all-wheel-drive. Comparing like configurations, both brands get an equal 20 mpg in stop and go traffic. Once you get up to cruising speed, the Chryslers pull out ahead, topping the GM SUVs by 2 mpg. At about $45K, the Chrysler/Dodges provide what may be an even more important advantage over the competition. An AWD Tahoe will run you $53,000. You don't really give up anything in terms of equipment or features for that price difference, so it's worth checking out.