Pics way bigger than it needs to be.
Six vortexes. You'll never touch the ones at ground level.
Here's proof:
Dirt is carried over the top of the tire before is it scoured out of the tread. You can see the middle vortexes.
For examples done right I'd point to the Aptera
aptera.scratchpad.brandetize.com/wp-content/uploads/2021/06/6.png
The modern style is to wear your clamshell fenders backwards.
https://external-content.duckduckgo....6pid%3DApi&f=1