Here is the full list of all 32 Crash Drive 2 achievements.
Fully level 30 cars
Unlock all special cars
Collect 30 cars
Win 100 Events
Shoot a player with the tank
Fully level 20 cars
Collect 20 cars
Win 50 Events
Honk 100 times
Win a race against atleast 3 opponents
Fully level 10 cars
Do a triple frontflip
Do a 1080 spin
Do a triple backflip
Collect 10 cars
Complete the Snow level challenges
Find all rings
Fully level 5 cars
Do a 500m drift
Complete the Forest level challenges
Tag 25 objects in a Tag event
Collect 5 cars
Complete the Tropical level challenges
Win 10 Events
Fall out of the level
Be the first to find the ring
Get 6 Seconds of airtime
Complete the Canyons level challenges
Get 10.000 points in one combo
Do a front and backflip in one combo
Win a King of the Crown event
Fully level a car