One can always count on PC forum members to jump right into the discussion with some candid opinions, that is why I like the forum so much! No one has the crystal ball to see what the future holds and again I was not implying that a Feightliner chassis was the direct replacement for the E-450 in 100% of the the applications it is utilized for but it certainly could be a replacement for the larger triple slide 29'-32 foot class C's that are really over weight before they are loaded with anything. If I was to venture a guess I can see the 20'-23' coaches being built on the Sprinter, Transit and Ram chassis exclusively, the 23' and up could utilize the F series and Ram 5500 with the 29' plus coaches utilizing the Feightliner SC-2RV. Ford initially said they would stop production of the E-450 in 2020, they are now saying as long as the demand is there they will continue production, one does not know what the bottom line "demand" really is? If we see another spike in fuel costs I am not sure how the V-10 is going to compete? At 71 MPH (no toad) with my ISL-9 Cummins I consistently get 10.7 on flat road, the ISB will get that or better. Just my two cents and that is probably all it is worth! Thanks, Ron