I hope I'm posting in the right thread...
Need some advice on my first car purchase.
So far I got this '04 Audi A6 S-Line with ~75k km in excellent condition available to purchase for CAD$8k (friend price). But the only problem is I'm wondering about maintenance costs in the long run (and I have to buy a set of winter tires). Is it worth it? How hard is it to find replacement parts if something breaks? And are yearly maintenance costs too exorbitant for my poor wallet? I'm guessing I'll have to go to a dealership to get it repaired/maintained?
I also have someone selling his '05 A6 4.2 V8 with 168k km for $6900. But I don't know about its condition. Probably not as good as the one above. And I'm not really looking to buy this one but it's just an option.
I don't know anything about cars.

Please advise. Thanks!