Dana Mecum Net Worth: Dana Mecum is an American businessman who has a net worth of $45 million. Born in Monmouth, Illinois, in 1954, Dana Mecum was the son of famed fleet salesman Edward Mecum. He amassed his fortune thanks to his passion for cars. He founded the car auction company, Mecum Auctions, which began as a business around his dining room table. The Mecum Auction Company is the largest antique, vintage, and collector car and motorcycle business in the world. In existence for more than 25 years, Mecum Auctions hosted their first auction in 1988 at the Rockford Airport. Now, the company typically holds more than one auction every month with an inventory of about 15 thousand cars annually. The company is headquartered in Walworth, Wisconsin, and is tops in the world for the number of collector cars offered at auctions, the number of collector cars sold at auctions, and the host of the largest collector car auction, which takes place every year in Florida. Mecum Auctions also has the most auction sites in the United States, and does the highest volume of sales domestically of all car auction companies. Mecum and his wife, Patti, have four sons together. The entire family is heavily involved in the business.