hey, a found a way to unlock this.
goto race days, and do one of the drag racedays in the far right corner.
do all races + get first place so you have 55,000+ points.
quit that race, and start any other. *cha-ching* acheivement unlocked.
hey, for the top 100 acheivement, you should try and see whether you can unlock it by sending a blueprint to someone in the top 100 on a shared raceday.
