Our 2006 (2007 build) Pleasure-way Plateau TS, is, if you look at it clinically, basically a commercial van, built on a durable, MB chassis with MB nannies,ie they help keep you on the road and no problems normally with cross winds. Newer Sprinters can make their own claims. Chrysler OR Mercedes Benz service Sprinters here are serviced locally without a problem. The diesel engine in the pre 2007 was an inline 5 cylinder:almost indestructible. The post 2007 including the 2007 have the V6 generally which IS strong and reliable. I am wondering about the claims for non service in some areas and were the MB and Dodge(Chrysler) dealers aware of specific needs. I have never had a transmission or engine problem and the drivetrain with 60K miles is happy as a clam. The resonator has been replaced but that is even rare now. I do like the idea of a Promaster v6 but they too can fail and that is just normal for mechanical devices. MPG: I get better mpg than most of the little grinders around here!!!