My wife's 1989 Volvo station wagon had a nasty habit of changing lanes without being told to. I bought her a new Subaru, but it took me another year to convince her to get rid of that damn Volvo. She loved that car, but I thought it was a rattletrap deathtrap piece of junk.
And repairs were expensive.
I'd agree with Bobert's recommendation of a Toyota, or a Honda - but Honda wagons are a bit hard to find.
-Joe-