During street testing, Raser found that the Hummer could cruise on the electric battery alone for the first 50 miles of driving and use only 60% of the battery pack. After that, the Hummer, which uses a lithium ion battery-powered motor-drive system and a gas-powered generator to recharge the batteries, gets between 33 and 35 mpg. And according to Raser’s methodology, that means the Hummer easily surpasses 100 mpg in total.
Lest you think that Raser’s claims are exaggerated, the company claims that if it used the methodology used to calculate the Chevy Volt’s mpg, the Hummer could boast over 190 mpg in city driving conditions. Translation: Chevrolet’s claims are bloated at best. The electric Hummer will retail for approximately $56,000 when it is released sometime close to 2011.
Check out a video of the Hummer test drive here.