The 3.0-liter Duramax turbodiesel I-6 is the standard ... Why they weren’t offered previously, when Colorado ZR2 had rock rails standard from launch, is a mystery (and one that cost us thousands ...

Colorado ZR2 competes with full-sized trucks ... but the benefits include much larger engine options - either a 3.0-liter Duramax turbo-diesel or 6.2-liter V-8 - a bed with best-in-class cargo ...

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This year, we gladly parked the Squarebody and instead made a few additional trips to our mountain property in the Colorado ZR2 to haul wood. See All 12 Photos Driving to the firewood plot is ...