Thats'a real expensive Prius! I would not spend such amount of BTCs because money is still a matter to me, I am not a damn rich like that guy!!
You dont need to be rich just to have a car like this, and before the price of bitcoin is cheap thats why it took a 1000 bitcoin before you have your car. That guy is an early adopter of bitcoin, and thats why he was able to buy more bitcoin. This is already a history, that car is also a history for sure more stories will come out like this.