The WK Grand Cherokee brought about a complete makeover in the drivetrain department from the previous generation. The trusty 4.0L straight-six was finally put out to pasture in favor of a new 3.7L V6. But the headliner was the availability of Dodge's newest Hemi V8. Displacing 5.7L in standard form and 6.1L in SRT-8 Grand Cherokees, power numbers crept up to new levels for Jeep's premium offering.

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