Full list of all 25 Project Gotham Racing 3 achievements worth 1,000 gamerscore.
The base game contains 20 achievements worth 900 Gamerscore, and there are 2 DLC packs containing 5 achievements worth 100 Gamerscore.
Platinum Champion
Online Professional
Style Racer Badge
Gotham Hero
Race Against the Clock
Pro Racer Badge
Gold Champion
Silver Champion
Bronze Champion
Steel Champion
Exotic Car Club
Rank 1
Ferrari Owners Club
Lamborghini Owners Club
Track Builder
Photographer
Arcade Player
Gotham TV Sports Fan
Rank 5
Rank 10
Tournament Qualifier
Cone Capture Champion
Team Cone Capture Champion
Cat Champion
Mouse Master