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The Colorado gets a power boost for 2007, with two all-new Vortec inline engines: a 4-cylinder 2.9-liter and a 5-cylinder 3.7-liter. Both powerplants feature dual overhead cams and variable valve timing. The Colorado’s interior has also been updated, a tire-pressure-monitoring system is now standard on all models, and a new chrome-finish version of the 15-inch, 5-spoke aluminum wheel is available.








