REVS to check is there are any finances against the car.

get a third party and/or a trusty mechanic to go over the car. best to have the car on the hoist and check the undercarrige. (this will give you an idea about the age of the car, KMs shown on the speedo etc).

as suggested before, check for panel alignment and see if you can spot colour differences (new vs. old etc - this will tell you if the car has been repaired etc)