302hp 2015 gmc canyon easily - mid-size pickup, 302hp 2015 gmc canyon easily best-looking mid-size pickup — 64 images inside/out — available from sept with 1400-pound payload standard. Chevy colorado: mid-size truck big plans, risks, Los angeles — developing the 2015 chevrolet colorado midsize pickup was especially tough. "we haven't done a really good midsize truck for many, many. Chevy banks mid-sized pickup comeback 2015 colorado, Gm north america chief mark reuss introduced the chevrolet colorado today at the l.a. auto show. photo credit: gm.