As informed after GM exposed the Hummer HX Concept at the Detroit Auto Show, a small model stands on this concept will be divulged in a few years. To be described H4 it will give the Hummer product a vital weapon in the United States against premium-priced compact SUVs.
Under the hood there will be a choice of two engine choices, the GM Vortec 3700 3.7L I-5 (242 HP) and the GM Vortec 4200 4.2L I-6 (291 HP). The transmission choices will be an Aisin 5-speed automatic or 5-speed manual. The H4 will be launched at the end of 2009 as a 2010 model.
The H4 has two versions, a 2 and 4 door versions. They both are supported on the same platform and the characteristics of the two versions are quite much the similar.
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