The most obvious difference between the Chevrolet Colorado and the GMC Canyon is obviously the design. They might both be sitting on the same platform but they definitely do not look the same.
Not only will they be sharing a platform but they also will be sharing an engine. The Chevrolet Colorado and the GMC Canyon will also run on the same 2.5 liters I-4 engine that will be mated to the same manual transmission. The Colorado and Canyon will return about 19mpg in the city and 26mpg on the highway.
Here is what separated the two. The Chevrolet Colorado with the same engine is able to go from 0-60mph in 7.4seconds and also has a towing capacity of 7700pounds. The GMC Canyon, on the other hand, will need 7.7seconds to go from 0-60mph and is capable of towing about 7000pounds.
It looks like the Chevrolet Colorado might have a slight edge over the GMC Canyon.