I'm searching for a new (used) car right now and have pretty much settled on a used Impala.
The two cars which look best to me right now are a 2005 Impala base with 57k that is at a local Chevy dealer (82 year old woman traded it in for a Malibu), and a 2006 Impala LS with 47k that is being sold at a private lot (it is a lease return vehicle).
They are both in immaculate shape and I'd be happy with either, but the 2005 has an asking price that is $2000 less than the 06, and the dealer also seems more willing to negotiate on it.
My big worry is that the 2005 has the infamous 3.4L V6 while the 2006 has the 3.5L.
The 3.4, as we all know, is famous for gasket problems which cost about $1000 to fix and could lead to engine failure if not detected.
My big question is did GM ever get this problem fixed? I know that they finally released a better gasket that they install if yours needs to be replaced, but did they ever BUILD the cars with the better gaskets already in there? 2005 was the last year they used the engine in the Impala, so did it get a revised gasket, or is the $1000 repair something I'd have to look forward to eventually with that car?