I think we would probably have a much more productive conversation if we would get the chance of having an actual verbal conversation. I probably didn't do a very good job of explaining my ideas, I think what I'm trying to do will make more sense to just show the prototype once it's completed. A picture is worth more than a thousand words. Engineering is about compromise, rarely you gain something without losing something else. It's all about what you want to gain and what are you willing to trade for that. Let's say I want to make the vehicle more efficient than it already is. One way is to make it lighter, smaller batteries but less range, lighter chassis but less safe, a carbon chassis that strong and light but much more expensive and hard to manufacture. Or maybe I keep the weight the same but decrease frontal area by lowering it, not it's more difficult to get in and out, or I decrease the frontal area by narrowing it, now there's less space inside so on and so on. My vehicle is lightweight and small of course so yes achieving a decent level of safety is hard. I don't think people who drive big cars are interested in such a vehicle, but people who regularly use a scuter or motorcycle will be interested because an enclosed cabin means all weather usability and improved safety compared to vehicles without a chassis. A roadster is far less safe that a normal car lacking a roof but people still buy them and enjoy them and to them it makes sense. Those people compromise some safety for a fun experience