Yes, "luxury" brands mean lots of money to buy, maint & repair.
If it still has a decent amt of time on the Audi Warranty, I'd consider it after researching its VIN. If that's ok, have a mechanic familiar w/ that yr & model check it.
Try to get one under Audi's warranty, not a 3rd party warranty, or eligible to be put under the warranty w/ lo mi, new enough, and in excel cond.
Get the bumper to bumper warranty, dont get or stay w/ the drivetrain/powertrain type, too many exclusions.
Call some A dealers' finance managers for details. Always get multiple opinions.
=============
Dont buy anything w/o reading Consumer Reports, CR. http://www.consumerreports.org/cro/index.htm A non-profit testing organization. Free site for basic info. Also @ libraries & bookstores.
-------------------------------
Honda ranks #1 in Consumer Reports for 2011. Subaru, Toyota, Volvo & Ford follow in order.
BMW and Mercedes were down-rated for reliability, with Mercedes in 10th place.
GM & Chrysler were 12th & 13th.
Vehicles were rated for performance, reliability, fuel efficiency and other factors.
http://online.wsj.com/article/SB10001424052748704615504576172500918475430.html?mod=WSJ_article_MoreIn_AutoIndustryNews Wall St Journal.
--------------------------------
http://www.forbes.com/2011/04/13/mercedes-gm-chrysler-nissan-business-autos-worst-cars.html