I'm friends with some automotive designers and engineers. There is a lot of thought and research put in to the design of the car for both aesthetics and function. BMW more closely follows the "form follows function" principal than other less performance oriented manufacturers.
I completely understand if an owner wants something that stands out and is different. Also, if an owner's use of the car is different from what it is designed for, an example would be hard core racing, the modifications make sense.
I'm just not in favor of design changes like putting chrome covers on door handles. Thank goodness everyone is not like me or it would be a very boring world.
