Elvis Presley was known to have affection for Cadillacs, but most Elvis fans may not be familiar with this custom Estate Wagon built for the megastar. One of only two ever made (the other was for Dean Martin) by the American Sunroof Company in Southgate Michigan, this 1972 Cadillac Sedan Deville will be up for grabs this weekend at the Mecum Celebrity Auction in Santa Monica, CA. It has been reported that Elvis originally gave this custom beauty as a gift to his manager, Colonel Tom Parker, but borrowed it so often that Parker ended up returning it to the singer to save himself the hassle. The car was then sent to Graceland where Elvis often drove it until his death. We're not sure what this rare gem is going to bring in at auction, but considering this was one of last vehicles known to have been driven before his tragic demise, it will be a pretty penny.