An owner of an old, well maintained, both mechanically and cosmetically is a car enthusiast. He knows a lot about cars, even new ones even though he drives an old one. Workshops do think twice before trying to con you, although most probably you already have a trusted mechanic and workshop.

And If you have tons of cash with you, other car people respect you. Those who look down are usually not car people. The drive flashy cars yet don't know nuts about the cars themselves.