I think it was back in around 2015 or 2016 that all manufacturers increased the rear passenger room. I think you can't go wrong with any of them in the years you are looking. As for bed length, the only thing wrong with my truck is the 6 1/2' bed. We have been looking at new trucks and finding a "long" bed is incredibly hard. Good thing I'm not in a hurry. What happened to trucks being used as trucks. The 6 1/2 foot bed is small regardless of what you are putting in there, unless you don't plan to use it as a truck. We haul hay, wood, trash, etc. And for towing, the longer wheelbase increases stability.
