The 2012 GMC Canyon is available as a 2-door, 3-seat regular side. Starting at $20,455, the 2012 GMC Canyon SLE1 4x2 Regular Cab is powered by a 2.9L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway. The top of the line 2012 GMC Canyon SLT 4x4 Crew Cab, priced at $31,790, is powered by a 3.7L, 5-cylinder engine mated to an automatic transmission that returns an EPA estimated 16-mpg in the city and 21-mpg on the highway.