GM's Hybrid SUVs May Get Better MPG Than Expected

When General Motors first showed off the hybrid versions of its Chevy Tahoe and GMC Yukon SUVs, it said mileage gains would be around 25% over the gasoline-only versions. Now GM is saying that when the two hit dealers this fall, city mileage could be 40% better — about 19-20 mpg using the EPA’s 2008 testing guidelines.

These will be the first vehicles to use a new hybrid system developed jointly with Chrysler Group and BMW, both of which have hybrid plans of their own. Towing rates will go down, though, from 8,200 pounds to 6,200 pounds, but the SUVs will still be four-wheel drive.

This hybrid system, like many others, doesn’t impact highway driving as much as city driving, and mileage both on the highway and overall is expected to be around 20 or 21 mpg. 

Pricing hasn’t been announced yet, but a $5,000 or more premium over the regular versions would be a conservative estimate.

GM Expects 40% Mileage Boost on Big SUV Hybrids (USA Today)