Went down to the GMC dealership to take a look at the Canyon, (indoor showroom inside a mall), with a cup of Timmie's in hand, took my time looking around a couple trims, and look at the Sierra 1500 and 2500 as well.
This truck is noticeably smaller than the full size pickups, as others mentioned, the shirt-bed trim does reminds me of the Sport-trac as posted before, if rear passenger doors were larger, the resemblance would be be more.
The interior dash is much better than my 2004 Sierra, and its is roomy enough, even thought it is nothing like a living room comfy in the bigger truck. The back seat space is sufficient enough, there is between my knees and the front seat-back (I sat in the front seat and make the proper adjustment first).
Anyway, the sales guy offer a test drive, I declined and took his business card and raincheck on the test drive. Leasing rate is 1.99% for 48 months.