2006-2008 Hummer H3: Year-to-Year Changes
Updated: 11/23/08
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Learn about the year-to-year changes of the 2006-2008 Hummer H3. Get full details of the styling and performance changes throughout the history of the 2006-2008 Hummer H3.
Year to Year Changes
2007 Hummer H3:
Output from the H3's five-cylinder engine grew from 220 to 242 horsepower for 2007. A new H3x trim package included chrome styling add-ons, leather upholstery, and 18-inch wheels.
2008 Hummer H3:
The 2008 Hummer H3 got a top-line Alpha model that brought V8 power to this midsize SUV lineup. The new Alpha sported a 300-hp 5.3-liter V8 borrowed from General Motors' large pickups.
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