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Car trains and trailers
The idea of a car train is interesting but practically speaking, a trailer is what most SUV and Pickup truck owners actually need for the occasional cargo hauling. The problem is most people can't back up a trailer to save their life (it is a skill). The trailer is so much more cost effective than hauling around a larger than needed vehicle.
Somewhere I saw a link to someone's automatic self castering trailer (in reverse only) but I didn't pursue the link. I've pondered how to do this (without grocery cart wheels) for a trailer APU for a pure EV on the occasional longer trip. Practically speaking it has to be simple and idiot proof (at least for the std deviation idiot). Anyone have any ideas or links to such a trailer. I'm not talking about the one wheeled wheelbarrow sized trailers that are occasionally seen. A Google search for "castering trailer" yields a lot of patents I need look at.
Back to the original topic, physics is the only important thing, all else is opinion. Cab over designs are practical but deadly in a collision. Life in most of the world isn't as precious as in the US and western Europe (so far). The occupants are trading utility for the risk of dying in a crash. Keep that in mind if you have or drive one.
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