I'm making a seperate report for this, as the updated "Community Raised Issues" list doesn't include this specific issue.
The updated Aston Martin and Mercedes liveries were not included in the sports update. Please refer to your OFFICIAL reddit post and compare it to what is actually in the game right now:
https://www.reddit.com/r/F1Game/comments/1njgbfb/celebrating_a_decade_of_speed_in_season_3/