Yes it's time to buy my first car and I need advice from fellow australians who drive. I'm willing to spend around $6000-$7000 on a second-hand of course. I found some really nice BMW series 3/5 cars from '85-'88. But I don't know how economical they are and where I can find this piece of infomration. I mean, I've been driving a Getz for a very long time. The point is, I wanna get a decent economical sedan sort of thing. Any suggestions/halp?