This is largely personal opinion.
Some people want to keep things "original". If that's your thing then check to see if you have the option code sticker under the front trunk lid to see what yours came with.
Personally, I don't care for the big spoilers on anything but a 930 because the proportions don't look right without a fat stance. Duck, no duck, and "Singer mini-duck" are the options.
Mine currently has no front or rear spoiler. I like the front spoiler look but am concerned about what that does to the aerodynamics. I have a nasty lip on my driveway that has been the thing preventing me from doing the front. If I do the front I am seriously considering the mini-duck. But that's all on the back burner -- in the middle of an interior restoration project.
