WilliamH
Elio Addict
It's the location of the headlights. Obviously, like any other vehicle made in USA for other markets, where the rule is to drive on the left, light units can be made to dip to the left, rather than to the right, a fairly simple change in the lens design. I understand that it's also acceptable for lights to dip vertically down, provided that a certain light pattern is produced (my USA market Honda Nighthawk 750 is like this).
The build regulations require the headlights to be no further than 400 mm from the outside edge of the vehicle. It's all to do with oncoming drivers to be able to correctly judge the full width of the vehicle. Although I haven't had the benefit of seeing an Elio in the flesh, so I could measure them, it appears to me that the P4 has the lights too far inboard. Another rule says only one set of headlights is allowed, so fitting auxiliary headlights and/or marker lights on the fenders unfortunately probably wouldn't satisfy the requirement.
Having put my self built Liege through the vehicle testing procedure, which took almost half a day, I know how thorough it is. Without a pass certificate, it is impossible to register a vehicle here. It would be a huge shame if Elio don't check the UK regulations and see what can be done about ensuring compliance. Because the only factory example of my type of car predated the testing procedure as it is now, I had to buy the official manual and build the car in accordance with it. My car passed the inspection first time out; many other similar cars did not. Something as fundamental as headlight placing is essential to get right.
Thanks for the info. "Your" 400mm (15.75 aprox) makes a lot of sense unlike a lot of government regulations.
I had some thoughts like that and had thought about clearance lights or an additional parking light.
Our ranch roads in Texas Hill Country don't necessarily meet normal width standards.