I supposedly finished taking photos of all the cars 328/328, but for 3 days now iit has been showing there’s 328/330 to photograph. 
EDIT: 528/528, but it’s showing 528/530
It rounds up to the next 10
There’s still only 528 cars
Dont worry you havent missed any
Will go over 530 and change to 540 when the next dlc pack gets released…if it does