Caporegime
The gate is on the far side, it's black.
May be there is a gate to the left of the 2nd photo?
It's not a concrete board it is painted wood, look how rotten the bottom is.
Fence and board lift out, drive out car, replace fence and board.
It's probably not a driveway, just a front garden and they needed somewhere to get the car off the road. So they lifted a fence panel and gravel board, drove it over the kerb and stuck it on the paving slabs.
The weird thing is that it looks like the fence is older than the car.
No gravel boards behind the trampoline leading to the next garden. Removable fence post and it would be easy to get out.......My theory.
What's even more weird is that you're managing to get some pretty close pictures of this layout , that last one looks like you could be stood in the corner of their garden!
I'm assuming you must know the neighbour, or maybe you are the astra owner
Would it fit between the posts if they lifted the fence and concrete panel out?
The whole front panel looks like its coming away from the frame, so i think the fence just lift up and off