OMG, some very funny stuff in this thread
To each his own, and do what you like and all that, but..
Making a modification like that sends only one message to the world: I have more money than taste, and rather than do something useful with my money I've decided to spend it on something that has no purpose other than to show other people just how much money I have.
Gross. Don't do that. Much better to keep your already-beautiful car as it is and show people you've got class. Class is important. Money only impresses people who have no other virtues.
If you have a reason for doing this besides showing off, then I'll back off and admit I just don't get it.