The Mercedes 300SL Gullwing, probably the most beautiful car ever made. (in my opinion anyway) This car has the most beautiful and pure lines ever to grace an automobile. Already 50 years old, but it still has the visual charisma to shame many present day supercars. This car was never built, it was sculpted. To describe this car as stunning is an understatement. Cars like these are what dreams are made of.