advantages to this wing:

#10 could serve as a picnic table
#9 if you flip the car, it will keep the rest of the car off the ground
#8 could be a place for the bottom 3 to sit on Idol
#7 wonderful for tailgaiting before an NFL game, the heat of the engine can warm the hot dogs
#6 at a parade, you could stand on it to see over other people
#5 the down force would make the rear tires flatten bumps on warm asphalt
#4 astronauts could spot the car from the space shuttle
#3 since the inside is too small, you could lay on the wing for a quicky in the office garage
#2 great alibi if you are innocent and want to prove where you were...everybody will remember seeing your car

and #1 Juliana from Dancing With the Stars could give you dance lesions on it!

 

I have the rear bumper, and it did have fit issues, in fact it cost me to have the body shop redo the finish to make it paint ready. Looks nice though.