GM's small pickups, the Colorado and its GMC Canyon twin, are more maneuverable than full-sized trucks and better equipped than their Nissan and Toyota competitors. We tested the V6, which returned 18 mpg overall, and the four-cylinder diesel, which got 24 mpg overall. The ride is rather choppy, as expected of a pickup, but handling is responsive. Rear- and four-wheel-drive versions are available, as are extended and crew-cab body styles. Inside are the latest electronics, including the MyLink audio system. These are the first small trucks to offer forward-collision and lane-departure warnings. In addition, a backup camera is standard. New for 2017 are an eight-speed automatic transmission and an updated, more responsive V6. Reliability has been below average.