I prefer my TOM TOM, not only does the model I have get life time updates. tracks and sees red light cramera's.........I have the ability to move it from one car/truck to the other. So I don't have to brake the bank to have a "in-dash" nave system in every vehicle I own (3). and for us that like to MOD things, I can customize it so that it shows MY car on the screen.
and if you have a Tom Tom......and want to do the same, I have a DIY so you to can di it.
http://www.camaro5.com/forums/showthread.php?t=91620