I believe the 99.5 headlights will be the same as those of the A6. Can anyone comment on the brightness and dispersion of these headlights?<p>Thanks.

The '99.5 headlights are indeed the same as those found on the '98 and '99 A6 (non-xenon). The low beams are excellent with good brightness and dispersion. They also offer very sharp cut-off and so tend not to blind oncoming drivers. The high beams put a lot of light on the road and the fogs are well located for inclement conditions. In conclusion, they are MUCH better than the current A4 lights.