Profession: Sultan of Brunei
Estimated Number Of Cars: As high as 7,000
Highlighted Cars: Aston Martin One-77, Ferrari Mythos concepts, Cicero BDB Maestro, Porsche Carma, Koenigsegg Agera CC GT

You know homeboy's collection is stacked when he has 604 Rolls-Royces, 452 Ferraris, 382 Bentleys, and those aren't the cars we want to talk about. The Sultan has gotten his hands on one-offs that most people haven't even heard of, including those highlighted above. His prolific collection is kept inside five secret airplane hangers staffed with specialists to keep the cars pristine.