The car collection of the 29th Sultan of Brunei is the largest private car collection in the world, consisting of approximately 7,000 cars, which have an estimated combined value over US$5 billion.[1] Within his collection of cars, the Sultan's collection of Ferrari F40s, McLaren F1s, and Rolls-Royce vehicles are particularly notable due to the rarity of the vehicles and their value. Brunei holds the Guinness World Record for the largest private Rolls-Royce collection, with around 150 cars, while the Sultan and his brother, Prince Jefri Bolkiah, are said to own an additional 1,998 luxury vehicles.[2]