If it has no warranty, I wouldn't do it. There are too many problem areas that were addressed on the 09''s and 10's during the first 6 years under warranty that are not cheap. Trust me, I know by experience. Thankfully, almost all of the common failures I experienced thus far were covered under warranty. I am actually happy to have had certain parts fail and get replaced. A car like mine should be good to go for a long time. A car without the troublesome areas addressed? Could cost you some $$ at some point.
Quick list:
Transmission - covered
Bell housing - covered
Dash cluster- covered
Radio- covered
ABS pump - not covered
Go for a lightly used car that has already had some/all of the above issues addressed.