Agree with stealth.pilot, the Xpel is the only way to go, this is the second car I've had it on and have been pleased both times. I posted one pic from yesterday after my install. I've seen installation prices very from 1200-1500 on a job similar to stealth's as well as mine, agree it depends on where you live.
2013 M5 delivered 8/25/12: AW, SO, Exec Package, ADV10 DC from WB
2012 Challenger SRT8: B/B, custom CAI, Borla Catback exhaust, Vossen VVSCV3, 8lb Magnusson Supercharger 670HP
2012 VW Golf R daily driven Stage II+ APR tune, 360HP