Here’s some photos:
Those rentals look like fun. Literally a piece of plastic bent around an old kart frame with a giant roll bar. Would like to feel how they would have handled/
I kinda agree. There’s a simplicity to them that intrigues me. They look relatively light, rental-wise.
Middle pic gives a sense of elevation changes.
The squared off inside corner intrigues me as well.
Edit: found them!