The paintwork issues are pretty normal for a 4 year old car. Can't expect it to be scratch free. However, do pay attention to rust and moss, I'd check all drain holes for tree litter obstructions, eg the doors, hatch and front guards. Has the rust bubbled and broken the paint surface, OR IS IT ACTUALLY TREE RESIN, they can look very similar. Unfortunately, it sets really hard and I have no idea what you could remove it with. Hopefully someone else here will know.
Either way, a great car.