[kach22i]

One idea which I've thought of and maybe other's have actually done before I even had the idea is to place a third brake light inside of the transparent or semi-transparent enclosure or tail.

The goal of this would be to use the internal light refraction to make the entire rear glow. In affect the back of the car becomes a giant tail light.

This could add a little extra margin of safety which is needed because of the small surface area of the rear.

My old Porsche 911 has a small rear surface area, and so do motorcycles, and people seem to have a very hard time judging distances, be it to the back or even the side. They tend to want to drive you off the road and take over your lane, perhaps because you are not filling it out or something.

It goes beyond mere aggression, and is a spacial occupancy thing.

In addition, I think red cars have less of a problem with this tailgating and side swiping than let's say silver/gray cars.

Diminutive size can be partially compensated for with loud colors, think of some poisonous snakes and frogs for instance.