If I were to want to waste a LOT of money (i.e. buy a new pickup to replace my '97 6.5TD K1500) I would definitely prefer to roll the dice on a D-Max inline. But, since I am such a cheap base turd, I needed to have a DD/farm chore truck that didn't have ANY risk of failure of any likely kind, so I bought a 2003 3500 Ram SRW with a NV5600 that needs a 5th gear syncro some day. It was a long way from cheap, and is a bit rusty but since it belonged to my best friend since new and I have maintained it, I know it very well. It also came with very low miles (240k kms = 145k miles), aluminum bull bumper with 12k Warn, forged 19.5s running 245/70 rubber. It spent much of it's life towing 12 horses and will pull the kinds of weight I usually do with my 450 but can't pull the same trailers (need open deck and 5th wheel for them). Have put a couple dozen tanks of fuel through now, and when running light, I get 12ish in the 450, 16 or so with the K1500 but easily break 20 with the 24V common rail. I compare towing with wife's Q7 (TDI of course) and expect similar from a new inline Chiverlay. That means closer to 30 USmpg light and far, far better fore economy and ability than my 6.5 with 3 tons or so tagged on the back. Now, the moral of this long and winding road is that the old 3500 was replaced first by a K1500 gasser for a few months - as the LIGHT towing ability and fuel consumption were absolutely horrible (far, far worse than the 1500 Ram 3.0 that shares that driveway) so best bud went back to a new DMax 3500 SRW crew cab and gets BETTER light load fuel mileage than anything else on this page except our Q7. It will also tow Ram 3500 and F450 7.3 size loads with ease and at similarly impressive fuel consumption. I can say I have often had a truck that wasn't enough for the jobs we do, but I have seldom had a truck that was too much. The big difference is that at today's level of technical development, the big diesel can come very close to the small gasser in fuel efficiency, but if you ever want to see STUPID writ big, just try towing with an ecoboost 150.