I just noticed that on the website :
- In the discovery section, you can now sort your search by popularity. This allows to show EVERY livery/pics/decals since the start of the game sorted by "likes".
I have not the console near me so I don't know if it is the same in the game.
The pages are not clear, though. The first page seems to be "100 likes and more", second page "between 100 and 50"... but it depends on the search terms you used (2nd page could be 100-60 or whatever).
This is not useful for the decals, as some of the less used decals can be find far quicker with the time than with the likes.
But for the liveries, it's awesome, you can now really see and choose the best of them. For example when you search "Castrol", you'll see the 5 ou 6 best Castrol Supra GT on the same page and therefore compare and choose your favourite !