It's definitely fascinating. Actually worse than the "if at 45 degrees". If you zoom in with whatever software, the letters are pixel for pixel completely straight on both plains.
That isn't anything any enhancement would do - they are simply over-layed.
The only analogy I can think of is a...
No doubt the reg is overlayed rather than "enhanced", just zoom in :)
Although the picture is taken from above and the car is at angle - the letters are completely straight in both plains.
To put it this way the only way it would look like that would be if the letters were skewed on the plate...
If the car wasn't there at all (if the op has proof), wouldn't it be deemed a bit odd that:
1) The software enhanced the image to the same registration number. Technically possible (if based on probability) but hugely unlikely it would resolve to an existing valid number plate.
2) The number...