Chevrolet's compact pickup shares a basic design with the GMC Canyon and Isuzu i-280/i-350, but differs in trim and details. Colorado's regular- and extended cab body styles come in Work, LS, and LT trim. Crew Cabs are LT only. A 175-hp 4-cyl engine is standard; a 220-hp inline 5-cyl is optional. Regulars and extendeds use manual or automatic transmissions. Crew Cabs are automatic only. Colorados are available with rear-wheel drive or 4-wheel drive that includes low-range gearing but should not be left engaged on dry pavement. A three-person front bench seat is standard. Bucket seats are optional. Extended cabs have rear-hinged back doors and seat up to five with two rear jump seats. Crew Cabs have four conventional doors and seat up to six with a split folding rear bench. Regulars and extendeds have a 6-ft bed; Crew Cabs a 5-ft bed. ABS is standard. Curtain side airbags covering all seating rows are optional. Traction control is available with 2WD, as is a sport suspension. Offered on all is an off-road suspension. New for '06 is a Sun and Sound Package, which includes a sunroof. Other options include OnStar assistance, heated bucket front seats, and leather upholstery.