Perhaps the most infamous limousine to ever come from Europe, the Mercedes-Benz 600 is incredible. Known for being owned by dictators and celebrities alike, the car was way ahead of its time when built between the 1960s and ‘80s. This is because when it was built, Mercedes didn’t set a budget for the car. Engineers were basically given a blank cheque and models were fully customisable. You could find items such as bullet-proof glass on hundreds of the 2,677 built. However, the most incredible feature on all variants of this vehicle was the fact that the car didn’t have electrics, everything was powered by hydraulics. This meant the car was whisper quiet and operations like opening and closer a window could be performed at immense speed. In 1963, the car cost more than a Rolls-Royce at between US$22,000 and US$25,000 or up to a little over US$200,000 in today’s money. A fully-restored long-wheelbase Pullman model can set you back nearly US$900,000, although The Hagerty Group who insure collector cars, values the vehicle in concours-ready condition at around US$237,000. That’s an increase of 166% from around US$89,000 in 2007.