Audi A4 and A6 are well rated

[Louis-Alain Richard]

On the same subject: re: Audi's bumpers and crash behavior
 
If you have time to spare, go here,
http://www.euroncap.com/tests/rover_100_1997/11.aspx, and
look at the older cars like the Rover 100, which was an 80's
design, and you'll have a good idea of how the small cars of
that period would fare. Scary.
 
On the other hand,
http://www.euroncap.com/tests/audi_a6_2004/207.aspx. Even
the windshield is intact.
 
Louis-Alain