[skyking]

I'm very familiar with the swept area behind axles. With a setup like that I can't see in the mirrors, I'd be using my camera in tight turns.
I suppose I could recess the tail lights in from the edge to get that clean break you speak of.

Edit: Let's try 10', and bring it in half the angle again. The first 8' @12 and the next 2' @ a total of 18 degrees.
1.6' + .65' = 2.25'
The starting width will be 7.67'
the end width would be 3.17'
3.17 squared is right about 10 square feet, a huge reduction.
Getting narrower does help the swept area problem during turns as well.