As part of its Hot Wheels brand, Mattel is coming out with a miniature Tesla Model S.

New trends in luxury investing. But while collecting rare collectibles may be fun, don't give up on stocks and bonds -- these 'passion investments' don't add too much heft to your portfolio.

A documentary filmmaker tells the story of how his father's obsession with the plush collectables cost the family everything.

Hollywood costumes and props used to be sold on eBay. The sale of a big private collection shows that specialty auctions are now the way to go.