So I'm currently looking at a 2004 Audi A4 that has 120,000 miles on it with a asking price of $8,300. From what ive researched that is a little high, but the guy did put about $2,500 worth of work into it since last October including new clutch, flywheel and timing belt. And it includes a extra set a wheels a a top rack. I test drove it yesterday and everything seemed nice, but i'm not a big car person so I don't know about everything to look for. So any help would be appreciated, thanks!

Here's the link to the car ad which has more information: 2004 Audi a4 Quattro 6 Speed