The Update #14 - The Anniversary Update Title update for Forza Horizon 4 has 12 achievements worth 250 gamerscore.
Complete the first chapter of ''The Top Gear Horizon Special''.
Earn 3 stars on the first chapter of ''The Top Gear Horizon Special''.
Complete seven chapters of ''The Top Gear Horizon Special''.
Earn 21 stars on ''The Top Gear Horizon Special''.
Complete the first chapter of ''The Car Files''.
Complete ten chapters of ''The Car Files''.
Earn 30 stars on ''The Car Files''.
Complete all Seasonal Championships in a Festival Playlist Series.
Complete all Seasonal PR Stunts in a Festival Playlist Series.
Earn 1 Season Completion Bonus.
Earn all 8 Season Completion Bonuses in the same Series.
Complete all activities in a single Festival Playlist Series.