Can't compare
You really can't compare the two scenarios, but if you were to, it would be more like a Super Truck, about 20 times the size of your truck - in your analogy - in a very wide open area, like the salt lake flats (or whatever it is called). The truck needs to take incredibly wide turns and needs forever to stop. In the Canadian Navy as a trainee in Officer Navy Basics, I lived on the Oriole, a two masted sailing vessel 102 feet long. Here is a link to it:http://www.heritagehouse.ca/press_releases/peoplesboatoriole.htmA vessel at 93 feet would still have a great deal of manoeuvrability.The only thing that makes any sense and I hate to speculate with zero knowledge but here is what I do know from all the news releases linked to through this site. Both vessels had radar, I am assuming but most likely both vessels had VHF radios, both had reasonable visibility; manoeuvring room was reasonable. So the only conclusion that makes any sense to me, much like the Queen of the North here in BC (Canada), that the radar was not used, the VHF radio not used, and the look outs marginal or non-existent.All one vessel had to do was get on the blower and say, "such and such a vessel, we're passing red to red." I have wondered if both vessels were on auto-pilot. It isn't clear whether the sailing vessel was actually sailing at the time, depending on winds and sea room, it may have not been, not that it would matter that much; the smaller vessel had the greater manoeuvrability.However, here in BC I have seen the courts award the smaller vessel - in a collision - a legal win due to the fact the larger BC Ferry did not honour the quarter starboard bow right of way to the smaller vessel.No where in the Col Regs is there mention of larger vessels having right of way over a smaller vessel, but there is an obligation to avoid a collision of both vessels involved in a collision. Often both vessels are found at fault since a collision occurred, there is considered negligent on the part of both vessels, since they did not avoid collision; this is even more so true if both have radar.