The 3.2 liter inline 5 they use as a high end engine in the European Transit van, is a good match against the VM/Ram V6 ecodiesel.
Probably something like that already in service. Where diesel costs about 3/4 the price of gasoline. And or where diesel emission regulations are lax compared to North America.
The advantages that diesel light vehicles had in 1996 do not exist in 2016 in the USA.
I dont know what places on earth you think they are going to sell it, the only pickup truck that works outside of North America is the Toyota Hilux. Africa and Asia are full of it but you guys dont get those. But Yank trucks, they are a rarity anywhere outside of North America. And here in Europe, the Mercedes Sprinter and Iveco Daily are the standard butter and bread trucks, either as a van or as a chassis-cab.
With SCR technology getting more commonplace in the USA, (after EPA un-prohibited SCR technology because manufacturers that already had experience with SCR technology in the European on-road market) urged them that achieving EPA standards with just EGR technology was not realistic) problems with diesels will diminish.
My friend has a Volvo V50 with a 1.6 liter diesel. Americans would consider it an ecodiesel. The amount of problems he had with this Ford/Peugeot engine were tremendous, this week he's had enough of it and traded it for one with a 2 liter diesel. (which is the same breed, from Volvo's Ford ownership era, which has cost them a lot of customers) The 2 liter has a better reputation as far as emission electronics. Nonetheless, punching the internals out of the DPF is the best thing you can do before the added backpressure kills a turbo.
Navistar was allmost bankrupted because the CEO insisted on the use of EGR/DPF only even while his engineers said they didnt know how to defy laws of nature. Deere loudmouthed the "Diesel only" mantra, but had to eat their words when they also couldnt get it done. All engines with a delayed ignition timing combined with EGR for lower NoX emissions and a DPF for lower PM emission, had big problems with the soot created already in the combustion, which was then recirculated by the EGR system, causing it to clog because the engine was basically eating its own sh*t
Once SCR gets commonplace in the automotive market, manufacturers can put the injection timing back to normal for clean, soot free combustion, use EGR (with no soot in it) for lower NoX emissions, and then tackle the rest of the NoX emissions caused by the hot, efficient and sootless burn, by an SCR (DEF) system.
Once they are all back to that main road (not just using SCR/DEF as an afterthought, but integrating emission systems and combustion as a whole) , Diesel reliability will get back to normal. Agco and New Holland are leading the way with their DOC/SCR/EGR route.