Did someone say diesel??
Nothing but good things could come from that. Sure it might be a bit noisy, but diesels have really come a long way. Gas mileage would probably be in the 20/25 range...towing capacity would probably come close to doubling....and the HP/LB-FT would increase significantly.
Right now I have an '04 Dodge Ram with the Cummins '600' HO Diesel. I put on the Banks Six Gun bundle for a little more performance. Right now I'm running an inline 6 cylinder (5.9L) with 400+ HP and just a hair under 800 lb-ft of torque. Factory warranty still intact and best off all....I'm averaging 17.5mpg with 35" tires....and it weighs almost twice as much as an H3!!
Once I hear about a turbo diesel H3 I'll be the first one on the list
...then me and my fiance could have "HIS" and "HERS" plates
.....how freakin' adorable