Ok It's a few hours since I did the back and forth flashing so lets see what I can remember and see from the pics above.
Wheel on ground deleted.
Size of cutout in rear door.
White marks on rear lower body.
Centre front door hinge missing.
Patination on forward part of roof side.
Wheel centre blanked on vehicle on far right.
Last car in row deleted.
That's 7 I'd have to cheat to get the last 3.
Edit: I have found the last 3 but jeez are they hard to spot. I had to flashy flashy it back and forth and even then it took a while. I will wait to see if anyone spots them.
Good game!
Thanks Mart...yeah - I wanted to do a few kind of more obvious ones...as well as some that really took a good eye.