14. Mercedes R63 AMG
If you are not familiar with the R-Class, it’s a minivan Mercedes based on the S-Class sedan. They equipped it with all the conceivable luxuries and powerful engines, making it perfect for crossing continents in the comfort of a leather sofa traveling at 100 mph. However, AMG, the Mercedes performance division, had something to say about that. They introduced the R63 with a 6.2-liter naturally aspirated V8 producing 503 HP. With the stiffer suspension, tons of power, and great performance, the R63 was no ordinary minivan. It was actually a sports car with room for seven people.
The car was expensive when it was new so it didn’t have much of a market. Also, the combination of minivan comfort and sports car performance was strange to customers. However, the R63 AMG was a glorious sleeper with a 4.8 second 0 to 60 mph time and an unassuming appearance. Nobody expected that a 5,000-pound crossover could beat a new BMW M3 in a stoplight drag race.