I'm looking into buying my first car. I'm 19 and my friend is selling me his 07 Audi a4 for 3,000 he is selling it to me because he jus bought a 2012 charger but I'm not sure wat to look for in the car he said it is in good condition and only has 70,000 miles on it but I'm not sure wat else to look for in it any ideas??