I love my Colorado, it is the best pickup ive ever owned. It has a I-5 3.7L Vortec motor, which is chevys notable 5 cylinder motor. The towing capacity is around 4,000lbs. Its pretty good on gas, i can get 15-17MPG pulling my trailer. Without the trailer i can get around 20MPG. These trucks can pull quite a load, ive went up steep gravel roads pulling the Grasshopper(which is around 1,000lbs itself) with no trouble at all and mines only 2WD. The 4WD Colorado's can really climb!