I just bought a 2006 Tungsten Gray GT and am interested in a number of modifications. I figure with everything I want to do from a supercharger, brakes, wheels, exhaust, and more will run me up to $15,000. I am having a delimma of concsious other than being a car guy, having a great car, and because I can spending the money concerns me. I will use her as a daily driver and really don't want to race her. Is there money to be had out there for our cars or is thise really an exercise in ego? Could really use so help.