Completely insulated floor walls and ceiling. New Fuel Pump and Filter New Fuse box in engine compartment Great Tires I bought it from someone who bought 3 of them from school district at auction. I put 1100 miles on it drove it to Florida from Indiana 2 years ago no problem. She sat a while but I'd turn it on once a week. I also bought new batteries 3 weeks ago. Does need some suspension fine tuning have a few worn our bushing an easy fix. Also could use 2 abs sensors. I'll throw in new glowplugs I bought for it I haven't changed yet. While parked a semi clipped the mirror I have something temporary in place but you need a better one. The engine runs perfect and clean the school districts keep a regular mIntenance schedule and since it's 2007 you don't need to buy D.E.F just diesel. Has a rear hitch installed you can pull a trailer with it if needed.