Here is the full list of all 21 Crashy Laps achievements.
Reach Pole Position
Reach Grand Prix
Reach ChampionShip Novice
Reach ChampionShip Professional
Reach ChampionShip Expert
Reach All Races Championship Expert 1st Area
Reach All Races Championship Expert 2nd Area
Reach All Races Championship Expert 3rd Area
Reach All Races Championship Expert 4th Area
Reach All Races Championship Expert 5th Area
Reach All Fastest Laps Championship Expert 1st Area
Reach All Fastest Laps Championship Expert 2nd Area
Reach All Fastest Laps Championship Expert 3rd Area
Reach All Fastest Laps Championship Expert 4th Area
Reach All Fastest Laps Championship Expert 5th Area
Reach Fastest Lap in a Championship Race
Reach All Championships Expert
Reach Unlock 2nd Area
Reach Unlock 3rd Area
Reach Unlock 4th Area
Reach Unlock Final Area