<< Sorry, I was thinking of the a6. Negligible diffs though. Very, very close in design.<a class=ftalternatingbarlinklarge href="http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/pictures/158600.jpg" target=blank>
Passat</A>
<a class=ftalternatingbarlinklarge href="http://www.audiusa.com/common/images/gallery3_a627t_lg.jpg" target=blank>A6</A>
<a class=ftalternatingbarlinklarge href="http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/pictures/158600.jpg" target=blank>A6 -2</A> >>
Different rooflines, different rear ends, and different front ends. They look NOTHING alike IMHO. The Audi is more rounded and bulbuous while the Passat is more angular and squared off.