I guess some luxury cars really are not worth all that luxury after all. Investopedia recently did a story on luxury cars that lose value the fastest. I was definitely surprised that a Mercedes S class was on the list, but I was not surprised Range Rovers are on the list because I have known for years they do not hold their value. Range Rovers on average can drop as much as 85% in value in the 5 years after purchase. The study was based on average resell price 5 years after the original purchase. Take a look at the gallery above for 3 other luxury cars that lose their value the fastest.