[s-cars] RE: 255/40 17 Snow Tires

[Tom Mullane]

FWIW, I run a variety of Audi's with a variety of snows.  My wife runs
205/55/16's on her A6 sedan and the A6 Avant wears 195/65/15's.  The A4 and
the S6 both have 225/50/16's.  The Coupe Q that I just sold wore
195/65/15's.

>From best to worst:

Coupe (195's)
A6 Avant (195's)
S6 (225's)
A6 Sedan (205's)
A4 (225's)

The S beats the A6 sedan by virtue of it's torsen rear diff alone; the A6
stops better, but the S6 is measurably better of the line.  Thinner is much
better, especially if you are fighting ABS to get the car stopped.

Tom