Heated steering wheel
#6
It was an option in 00, my 00 is cold weather and it mentions the heated steering wheel in the manual, but it is an option. It does not come standard with the cold weather package its an add on I believe.
#10
I'm pretty sure it comes with the car if the car has heated seats. My 99 A6's owner's manual says that when you turn on the heated seats, the heated steering wheel turns on also, so I think that means the heated steering wheel comes with heated seats.