When you get a Maisto 1:18 Audi R8, #36143, you might not notice that the wing is adjustable. Here it is in the raised position.
When new, the hinge may be a little stiff so open the rear hatch and press down on the little lever with an old ballpoint pen to raise the wing. Move the wing up and down a few times and then close the hatch. Now you’ll be able to raise the wing by putting your fingernail under it.
Here’s how it looks in the down position.