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GM and Isuzu are boosting production if the 6.6–liter Duramax diesel engine to supply increased demand and new products. Hummer has recently announced the Alpha performance line for all models and the ...

Hummer officials plan to add the Alpha badge to other, smaller Hummers, such as the H2 and H3, as their performance versions are developed down the road. This marks the first time Hummer has a ...