[s-cars] UrS weight datapoint

[Bob Rossato]

Well just to throw another data point out there, if one is really needed, I
recently put my '95 S6 sedan on a set of scales my friend has.

3756 lbs w/o driver (you don't really want to know the w/driver weight), 1/2
tank of gas, 17x8 S6 Avus wheels w/235/45 Dunlop SP8000 (50.2lbs ea), and
full size 17x8 Avus spare.  Car is otherwise stock except for
Eibach/Bilsteins.

I had previously had the car weighed when I had an alignment done a couple
of years ago (has it been that long?) and it was 3747 lbs w/o driver, 1/2
tank, same wheels and spare.  So comparable data from two sets of scales.