You know that feel that strikes you in your gut when you're happily driving along, and all of the sudden someone cuts you off within an inch of your (and their own!) life? 

What if you could communicate with that person other than flippin' them the howdy do, whilst they give you that s-eating grin in their rear view mirror, and watch you as you silently (to them) cuss them out? Wouldn't that be nice? Kinks clearly need to be worked out, but hey, this is an idea show not an execution program.