Here is the full list of all 32 BAFL - there are Brakes Are For Losers achievements.
Win your first flag in a Perfect Race challenge
Win a "Too Easy" championship against 7 bots
Max out your Armour & Repairing upgrades
Win an 8-car race without ever making a pit stop
Run through an entire 8-car race without getting wrecked
Perform a perfect lap in a championship race
Win a race against 7 bots in a "Too Easy" championship
Hey you found the credits! Awesome.
So you tried to buy brakes? Loser.
Win a "Normal" championship against 7 bots
Win a "Too Hard" championship against 7 bots
Win all the races in a "Too Easy" championship against 7 bots
Win all the races in a "Normal" championship against 7 bots
Win all the races in a "Too Hard" championship against 7 bots
Win a race against 7 bots in a "Normal" championship
Win a race against 7 bots in a "Too Hard" championship
Play a full-human 8-player championship
Duel a friend in a championship without bots
Max out your Speed upgrade
Max out your Adhesion upgrade
Max out your Handling upgrade
Win your first flag in a Time Attack challenge
Unlock 3 Time Attack flags on a track
Unlock 3 Perfect Race flags on a track
Unlock all 6 challenge flags on a track
Unlock 3 Time Attack flags on every tracks
Unlock 3 Perfect Race flags on every tracks
Unlock half of the flags
Unlock all the flags
Open the first challenge barrier
Open the second challenge barrier
End up last in a championship against 7 AIs