The Chevrolet Colorado and its counterpart, the GMC Canyon, are mid-size pickup trucks by American carmaker General Motors. It was introduced in 2004 to replace the Chevrolet S-10 and GMC Sonoma compact pickups. Isuzu, which participated in the design of the truck, began selling its own version in late 2005, named the "i-Series". The Chevrolet Colorado was jointly designed by GM's North American operations, GM's Brazil operations, and Isuzu, based on the GMT355, itself the basis for the GMT 345-based Hummer H3. The vehicles are manufactured at a GM plant in Rayong, Thailand, and in... Shreveport, Louisiana. The Colorado/Canyon offer both manual and automatic transmissions. GM also offers either a rear-wheel drive or four-wheel drive drivetrain with standard, extended, and four-door crew cab body styles. Most models come with the 2.8 L LK5 I4 engine as standard, but a more powerful 3.5 L L52 Straight-5 comes with the Z71 package on 4-door versions and is optional on all others. The 4-door Z71s also get the 4-speed automatic transmission standard. This package was later dropped in favor of LT2 and LT3.
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