Agreed !
Looks even more obvious when you zoom in a little - very distinct line can be seen.
Quite why a new car would have had paint is a question which should be asked. Could have been done at the factory or the dealership. My guess is at the factory - most likely as a result of clumsy fitting of the door / damage / repaint. A decent bodyshop will be able to measure the paint thickness and confirm it 100%.
Personally, I would attempt to reject it on the basis of undisclosed damage and non-merchantable quality. You can reasonably expect a new car to have no known or previously corrected defects on delivery, and something fishy seems to have gone on here.
