My grandfather won a Cadillac, it was the 60's in San Francisco, and Regal gas stations ran a contest, grand prize a shiny new Cadillac. The details are lost, but as far as my dad knows it was a plain enter-to-win raffle, and his dad won! Comin up slammin Cadillac doors, but they "weren't really a Cadillac family" so they sold it.