the only spoiler I would ever consider is that motorized spoiler in the spy shots of the RS5.

As for the integrated into the trunk lid spoiler, the S-line A5's and S5 both have it.

Word
 

Why indeed?

SPOILER: –noun 1. a person or thing that spoils.
2. a person or thing who robs or ravages; despoiler; plunderer .

spoiler |ˈspoilər|
noun
1 a person or thing that spoils.
• (esp. in a political context) a person who obstructs or prevents an opponent's success while having no chance of winning a contest themselves.
• an electronic device for preventing unauthorized copying of sound recordings by means of a disruptive signal inaudible on the original.
2 a flap on an aircraft or glider that can be projected from the surface of a wing in order to create drag and so reduce speed.
• a similar device on a motor vehicle intended to prevent it from being lifted off the road when traveling at very high speeds.

...you did get my joke, right Josh? Assume you were agreeing that in the case of the A/S5, only one definition should apply.

Sorry, Steve. I did get it but I also think that at times a spoiler can look good on a car (you also got me curious as to the full actual definition of the word). Though I hate the wing Audi makes for the A5.

Am I right in assuming the S5 has a lip on the trunk that the A5 lacks? I know my S8 has a lip that the A8L lacks. I rather like that. It's very subdued and tasteful. Kind of like the rubber lip that I had on a 1983 SAAB 900S many moons ago. That looked good. But the boy racer look of an actual wing doesn't appeal to me on a road car.

correct the standard A5 does not have the same lip as the S5 on the trunk.

The A5 S-line does have the same lip however.

here are some snap shots.

A5 Rear Deck Spoiler Pictures
 

here are some snap shots.

+10 here. I'm a huge fan of spoilers, but not on the A5.....and a few other cars not deserving a spoiler...ala...Camry, Cadillacs, Pickup trucks...etc.