noisy suspension, misty headlights, dodgy remaps causing limp mode, slipping clutch, loose turbo mounting bolts, electric window motors, broken rear washer jet, and marks/scuffs on the dash/glovebox
If I think of any more I'll let you know
do a search mate this is quite a common question
don't forget the normal signs of bad crash repair, stolen recovered, 2 cars welded together..........etc etc