I've put a few 100k miles on several Benz's with 617 turbos. Yes, when the turbo is fully spooled, a lot of torque. However, if the rpm is low and you are pretty much in the NA mode, you can't get out of the way of a turtle.
They are also a long ways from maintenance free and everyone of the three I had eventually ate the cam and followers. That and the parts are Benz's usual ridiculous prices.
I've also had a couple of Benz NA diesels. Gutless wonders but one of them ran 500k.
Do I want a diesel in a Jeep? Not any of them I'm familiar with. If it actually gets cold, none will start without a heater of some type.
For myself, I came to the conclusion that one would be way better off building a long stoke gas V8 that will yield a diesel-like torque curve. Lighter, easier to fix, cheaper and more available fuel, and they will start un-aided when it's below zero.