Here is the full list of all 16 Days of Thunder: NASCAR Edition trophies - there are 15 bronze and 1 gold.
Gain all Trophies.
Earn over 9000 points in Derby mode.
Complete a full career.
Unlock all sponsors.
Max out a car's performance points.
Qualify for The Chase.
Unlock all paint styles.
Play your first multiplayer match.
Use Focus 100 times in singleplayer.
Qualify for The Sprint.
Make your first million.
Qualify first for a race.
Use Hammer 100 times in singleplayer.
Unlock your first sponsor.
Win your first career race.
Start new career as a rookie.