Here is the full list of all 13 Danger Zone 2 achievements.
Get all platinum medals in Region 2
Get all platinum medals in Region 3
All Gold Medals
Get a 10x Boost Chain
All Run Up bonuses awarded
Get all platinum medals in Region 1
1km of Drift in F1 car
Crash 2000 cars
Collect 10 gold pickups
Collect one of every pickup type
Get 50 traffic car Rollovers in a single crash
First Grand Slam
First Run Up bonus awarded