When it comes to luxury cars, one would definitely think of famous cars costing hundreds of thousands of US dollars at a time, such as Mercedes-Benz, Bentley, Bugatti Veyron, BMW, Lamborghini and so on. But these following twelve cars are even more extravagant luxury vehicles than those ones, because they are either gold-plated or diamond-encrusted, and they are the luxuries for an extremely small number of billionaires in the world. The first place: Diamond-encrusted Mercedes-Benz SL. A luxury item at an auto show abroad. There is no exact information about whether this car uses real diamonds or not, but judging from its dazzling appearance, it’s cool enough even if they’re not real. The second place: Ivory Car. This car is decorated with pure hand-carved mammoth teeth, yak bones, gold, diamonds, rubies, etc. The whole car is surrounded by a huge dragon, and the hood is inlaid with a coiled-dragon head statue. Price: 2.7 million US dollars.