Here is the full list of all 12 Woden GP achievements.
You entered the Woden GP Championships
You won the bronze cup!
You won the Silver cup!
You won the golden cup!
Participate in five races
Finish 12 Races
Finish 30 Races
Finish a race without crashing.
Finish a race without getting off the road
You hit 50 cones.
Welcome to Woden GP
You cleared Route A!