Full list of all 59 nail'd achievements worth 1,200 gamerscore.
The base game contains 49 achievements worth 1,000 Gamerscore, and there is 1 DLC packs containing 10 achievements worth 200 Gamerscore.
Win your first nail'd event
Race for more than one hour
Win at least a Bronze Medal in the Greece Amateur Cup in Tournament mode
Win at least a Bronze Medal in the Andes Amateur Cup in Tournament mode
Win at least a Bronze Medal in the Yosemite Amateur Cup in Tournament mode
Win at least a Bronze Medal in the Arizona Amateur Cup in Tournament mode
Win at least a Bronze Medal in all the Amateur World Cups in Tournament mode
Win at least a Bronze Medal in the Stunt Cup in Tournament mode
Win at least a Bronze Medal in the Burner Cup in Tournament mode
Unlock The Grand Finale in Tournament mode
Win at least a Bronze Medal in the Tournament
Win 10 events in a row
Fly for more than 10 kilometers / 6.2 miles
Earn at least 200 Boost Feats
Earn all possible types of Boost Feats
Beat Jasiu's time of 2:37 on Aqueducts in simple race with no mutators
Smash at least 100 opponents in multiplayer races
Gain a boost feat using air control
Gain a boost feat using pressure control
Be at least 3rd in 100 Xbox LIVE events
Play and win 30 Xbox LIVE events you have not created
Play and win 20 Xbox LIVE events you have created
Win 5 Xbox LIVE events in a row without crashing
Drive a total of 1,000 km / 621 mi
Gain a Off-road rage boost feat 50 times
Find a shortcut that leads to a three headed knight statue
Win a tournament race in which you crashed at least 5 times
Win races on all tracks in all modes
Beat developer bests on 4 tracks
Beat developer bests on 8 tracks
Beat developer bests on all tracks
Fly for more than 260 meters / 853 feet in a single jump
Wreck your vehicle 250 times
Win a race by more than 5.0 sec.
Win an Xbox LIVE race with 5 other, higher classified players
Win at least a silver medal in each of 49 Tournament events
Unlock all other 48 achievements
Win 100 Xbox LIVE races
Win all 49 tournament gold medals
Win at least a bronze medal in each of 49 Tournament events
Win races on all Greece tracks in all modes
Win races on all Andes tracks in all modes
Win races on all Yosemite tracks in all modes
Win races on all Arizona tracks in all modes
Win an Xbox LIVE race in which you smashed two opponents and were smashed twice
Perform 5 Boost Feats in less than 10sec.
Perform 20 Monster MTX Boost Feats
Perform 20 nail'd Expert Boost Feats
Win an Xbox LIVE race in which you were last after the first half of the track
Win races on all tracks (including DLC maps) in all modes in multiplayer
Win races on all DLC Andes tracks in all modes
Win 20 Xbox LIVE Detonator races with more than 5 players
Win a detonator race without being blown up
Win 2 events in a row, each one with a different gender driver (SP or MP)
Win all Tournament gold medals including DLC extension
Win a race without using boost
Win DLC Tournament extension
Win an Xbox LIVE event consisting of 5 or more tracks
Win an Xbox LIVE event on all Yosemite tracks