The original Yellow and white scheme was done with under the hood left alone to save those classic hand written GM markings. Of course, you cant have a new shiny paint job and then open the door to a year-old interior so much like the outside they used the same pattern/material and re did the interior bringing the old tired out cab back to like. It really turned out amazing with the paint being slick and the interior extremely comfortable. Under the hood is the original Big Block that is displacing a monstrous CID. It has all the low-end power that you need to pull that 5th wheel down the road.