Full list of all 45 FlatOut 4: Total Insanity achievements.
The base game contains 44 achievements, and there is 1 DLC pack containing 1 achievements.
Slam 100 opponents in online races
Destroy 20 Opponents Online
Wreck 5 vehicles during a round in Arena Mode
Complete your first race in Arena Mode
Try again... you can do it! (Destroy your car for the first time)
Keep the flag for 66 seconds in Keep the Flag Game Mode.
Win 25 online races
Win 20 races in Assault Mode online
Win 10 online races
Win 5 races in Assault Mode online
Win a race without crashing (100% Full HP)
Win a race in Assault Mode
Win an online race
Empty all your nitro for the first time from full to empty
Burn nitro continuously for at least 5 seconds in a race
Finish consecutively 10 times on podium in Career Mode
Be both Survivor and Eliminator at the same time in 5 Arena Death matches
Earn 123456 cash in Career Mode
Get all available skins for a Derby car
Kill Three opponents in the same race (offline)
Complete FlatOut Mode
Complete FlatOut Mode with all gold
Complete all stunts with Bronze in FlatOut Mode
Complete all stunts with Gold in FlatOut Mode
Complete Career Mode
Upgrade an AllStar car at the maximum
Purchase all cars of the game
Destroy 2000 breakables
Destroy your first opponent (offline)
Destroy 50 opponents (offline)
Win 15 races in Arena Mode
Hit 3 cars with the same activated weapon in Assault Mode
Use the 4 weapons in Assault Mode
Beat a Time Trial in Career Mode
Upgrade a car once
Win a race with the maximum car parts on your car.
Win a race in Derby, Classic, AllStar classes
Eject your driver 100 times
Drive a total distance of 500 miles
Jump at least 100m long with your car
Complete your First Cup in Career Mode
Score over a 100,000 in a race
Make the perfect score in a stunt game
Buy at least two cars in each class, Derby, Classic and AllStar
Recover the flag 10 times in the Keep the Flag Mode