Look at that thing again. The Global Ranger is almost a half ton, and we already have half tons here in the states. In other words, that video is not impressive in the least. Its a cheap publicity stunt. I mean honestly, when you deal with the low friction of steel rails, all you need is enough power applied over time to get it moving, and it will keep moving. This can be demonstrated just by the fact that a full sized train with just a couple thousand horsepower can pull over 50 cars by itself on level ground at 50 mph. That kind of horsepower can be acheived by high end race cars. Its all about how the power is applied, which has a lot to do with gearing. Truck are designed to tow and haul, so any truck should be able to repeat that demonstration, even a 4 cylinder non-turbo american ranger. Even if you had to rev the engine a little and slip the clutch a lot to produce more power, you could do it. And if you have 4wd and you put it into low range, you can pull just about anything.