I asked myself that very same question when my daughter's first car had to be some fancy new mustang. I just sat there in awe. My first car was an AMC Gremlin and i had to work my tail off at a part time job after school to save the money.
My kids also want to know what an 80 year old is driving around in a corvette for. My answer........"He probably paid his dues, put his kids through college and now it's his turn to finally have something he's always wanted."
I don't know the answer to your question, but if you find it, let me know.