just dreaming... educate me on what I should get please!

[Evan]

the most important time to know what is going on behind you is under braking (also when engines are the quietest) so that you dont turn in on someone, block a faster class, know how to defend etc.

If you cant look in a mirror and brake at the same time, its time to take up golf. Same goes for those "distracting" brake lights.