My understanding is they do, sometimes in a panic braking situation the 3rd brake light flashes rapidly to alert those in the back (if they are paying attention).

If not then that'll be a test of the angular rear body work design against whatever kind of car design is in the back...

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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg

cars are nice, but im really a truck guy, and the opposite is true about the pickups-GM in particular. They decided they would push the brick.

Did someone request angular?
http://2016lamborghini.com/wp-content/uploads/2015/02/new-lamborghini-veneno-red.jpg

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Suppose you were an idiot, and suppose you were a member of Congress; but I repeat myself. - Twain