nice progression and well chosen mods...
I have been thinking of the plastic dip rear valence (poor man's Mtech) but you actually did it...nice work!
Now, get some coilovers on that thing and lower it appropriately! You'll be amazed at how much more aggressive it will look.
2011 Mineral White M3 ZCP
Paint Correct, Opticoat, Ventureshield and some CF and an intake