While the Hummer H2 has iconic styling and good off-road capability, buyers should consider its large size and poor fuel economy before making a purchase. The Hummer H2 is an expensive car to own and a difficult one to rely upon.
In its final model year of 2009, the Hummer H2 was powered by a 6.2-liter V8 engine producing 393 horsepower and 415 foot-pounds of torque, sufficient to move the heavy SUV from 0 to 60 mph in less than 10 seconds. However, the 6,600-pound curb weight of the Hummer, paired with its powerful engine, leads to poor fuel economy. The Environmental Protection Agency has not officially rated the Hummer H2 due to its high gross vehicle weight, but independent estimates place the Hummer H2's fuel economy at 8 to 10 miles per gallon. This is nearly half the expected fuel economy of all but the largest pickup trucks and is one of the lowest of any civilian vehicles.
Driving the Hummer H2 is challenging in any environment other than off-road excursions, where the high ground clearance and huge tires of the Hummer give it excellent performance. On highways and city streets, the limited visibility of the Hummer H2 makes seeing pedestrians and other cars difficult. The H2's bulk is a particular concern in urban environments, especially when trying to navigate narrow streets or fit into parking spaces.