Got my 2008 Colorado last September. Driven 12000 miles. Gas mileage runs 20- 22 in town. Roomy cab, and back seat leg room is adequate for its size. Why the Colorado and not the Silverado? I don't pull anything, and only haul lighter cargo- plus I like the extra room in my garage. I do haul my scooter, and I've carried a bed full of pavers plus three adults with the A/C on and the little 4-cyl powered us right down the road. Engine torques up real quick. Passing on the highway winds it up a little more than I like, but it gets moving right away.
OnStar! (Safest way to drive & talk.) Torque. Reliability. Roomy crew cab for its size. Paint/Trim/Finish. Gas mileage.
We used to call it 'passing gear' - it winds up pretty high when overtaking another vehicle or sometimes when entering a highway, but that's just the 4-cyl engine, and I'd rather save gas!
† Edmunds.com received the highest numerical score in the proprietary J.D. Power 2014 Third-Party Automotive Website Evaluation Study℠. Results based on responses from 3,381 responses, measuring 14 companies and measures third-party automotive website usefulness among new and used vehicle shoppers. Proprietary study results are based on experiences and perceptions of owners surveyed from January 2014. Your experiences may vary. Visit jdpower.com.