My Chevy 3500 Silverado (diesel duly) has 4 full size door in the cab and full size front and back seat. The front seat is a split bench seat with an arm restraint in the middle to make more "bucket seat" style, or can be lifted for 2 passengers and 1 driver.
The bed of the truck is 8 feet 1 inch long (the actual length) and I can lay a full sheet of plywood or dry wall flat between the wheel wells. The outside deminsion of the truck is 8 feet wide with the fat (duly) fender).
The truck does it all. It can comfortably transport 6 adults. The back seat (split also), lifts up also, making space available from the floor to the ceiling. So if traveling, we can stow a LOT of stuff in the back with the seat up.
The back seat also comes with a flip down arm rest in the middle and then the back can be used as 'bucket seat' style too. Very versatile.
By the way, this is a fabulous truck! We love it! It's by far the best vehicle we've ever owned.
