Bucket List Achievement
Finish 1st in every single race in the Event List in Career play mode.
This will probably be one of your last achievements in the game. This will most likely consume a lot of time too, but it will not be as bad when you are working towards all the other achievements. Just remember that the season races count towards the number of completed events in your event list, so try to change up your races in season to cover the most ground on this achievement.