Trail Renderer Hardening?

Hey I was wondering if the trail rendering feature in unity could have collision of its own? So basically a path that hardens; is it possible? Please let me know. - steven

This is needed for Tron-like games. Links to a couple of solutions:

Creating a line of box colliders:

Detecting hits with LineCasts:

Searching this list for Tron might give you more ideas/solutions.