Here is the full list of all 21 Race Condition achievements.
First place in every race
Obtain the red car
Finish the World Tour
Advance to Driver Level 8
Advance to Driver Level 7
Win ten races
Advance to Driver Level 6
Advance to Driver Level 5
Crash into something at 300 km/h or faster
Win five races
Advance to Driver Level 4
Reach 450 km/h
Reach 400 km/h
Advance to Driver Level 3
Place third in a race
First Pitstop
Advance to Driver Level 2
Win a race
Best lap time in a race
Place second in a race
Highest top speed in a race