Thanks. It looks like they use the minimum width for the roll bar, that will reduce it's drag. Could it pass tech inspection if you zip-tie an airfoil to the back of the roll bar?
This is the best open front wheel I've seen. It has a narrow tire on a wide rim and a smooth cap that overhangs the rim so there is one continuous curve from the leading to the trailing edge. The inner face is also smoothed.
I see what they're doing with the endplate/cycle fender, mimicing F1 race cars. I think the rear part is more important. With a tall, narrow wheel a fender, instead of the 30s swoop your red fender shows would look more like this:
Then, just because I can, here's a picture of an electric racer from the UK.
Do this with a roll bar—Short nose and tall tires. Raise the pedals and move them forward so the seat can move forward. How much contact patch do you need for the corners?