I was asked about it, and I said I would so here's a video. I know the 800 only had the 250, not counting the couple RARE protos with the ceramic engine. However, the 939s have different cummins in them.
For your viewing pleasure, not a sales pitch.
https://www.youtube.com/watch?v=OtDYB5w7RvA
For your viewing pleasure, not a sales pitch.
https://www.youtube.com/watch?v=OtDYB5w7RvA