<img src="http://pictureposter.audiworld.com/43277/b8a4front.jpg">

<img src="http://pictureposter.audiworld.com/43277/b8a5front.jpg">

KIDDING!!!!!!!!!!!!!!!!!!!!!!!!!!!

j/k

I still think they need a different grille for S-Line B8 A4 and A5 cars.

The A5 also has a uninterrupted crease extending from the A-pillar all the way down to the bottom of the front bumper.

the individual. Overall, they're pretty close.

This is an A5 S-line. Note the slight difference in the fogs and the shape of the lower part of the front.

<img src="http://www.motoradictos.com/images/2007/05/audi_a5_sline.jpg">

I'm not sure I think "agressive" is the word. To me the A5 looks more organic, more curvacous - more like an R8. The A4 has more of a boxy high-shoulder look - more utilitarian. Those two shots are hard to compare since the A5 is shot from a lower angle looking up, but even so, the more graceful curve of foglight/intake areas is smoother, more of an integral style element. The front of the A4 from that photo looks a bit like some after market ground effects kit - IMHO. Kind of WRX-llike. I prfer the A5 look.

Regular A4:
<img src="http://www.fourtitude.com/gallery/generated//Audi/A4-S4-RS4%20(B5,%20B6,%20B7%20and%20B8)/A4%20Sedan%20(B8)/Exterior%20-%20EU/024__scaled_600.jpg">

S-line A4: (notice different bumper and grey lower lip)
<img src="http://www.audiworld.com/news/07/frankfurt-show-review/2007IAA183.jpg">

personally, I prefer the S-line and S5 front which does look more like the A4. I guess it comes down to personal preference.

<center><img src="http://pictureposter.audiworld.com/43277/b8a4sline.jpg"></center><p>Note that the fog area is 4-sided instead of the 5-sided in the regular A4. The A5 is reversed i.e. regular = 4-sided, S-Line = 5-sided.

Also note that the hood crease extends from the A-pillar all the way down to the bumper, like the regular A5.