We have the new Chevrolet Colorado 2015 midsize we ordered it November 3 2014 and took delivery in January of 2015.
This month where on a trip for 15 days and a 1100 only filled up every 4 ½ hours around 410 miles pulling a 2013 Kodiak 241RBSL RV with a weight of 5700 lbs. and 22 for the truck length and 26 for the RV length we did on average of 65-68 MPH and 58-63 though Jellico Tennessee and Kentucky to Roswell Georgia in the Chattanooga Tennessee area.
We had not one issue or problem steady and the seats one issue on a long trip we the best we have ever had just had to stretch a little