Here is the full list of all 62 NASCAR Heat 3 achievements.
Was the Split Screen champion after 4 races
Won a Split Screen race
Completed 10 Multiplayer races
Won a Multiplayer race
Completed a Multiplayer race
Won a race at every dirt track
Got a friend
Raced in the NASCAR Camping World Truck series on a team
Completed an Xtreme Dirt season
Won an Xtreme Dirt championship
Won the Xtreme Dirt series playoffs
Completed one career season
Won 25 races
Maxed out all stats on 1 employee (any series)
Trained your first employee
Maxed out a single stat on an employee
Got a rival
Earned a spot in the Xtreme Dirt playoffs
Maxed out all departments (any series)
Maxed out a single department
Completed a NASCAR Camping World Truck season
Won a NASCAR Camping World Truck championship
Completed a full NASCAR Xfinity season
Won a NASCAR Xfinity championship
Won 10 races
Won a race with a 100% race length
Completed a race with a 100% race length
Created a custom car paintjob
Raced in the Xtreme Dirt series on a team
Hired your first employee
Won a race in Career
Created a character
Completed a challenge
Won a Monster Energy NASCAR championship
Completed a full Monster Energy NASCAR cup season
Won a race
Won 56 races
Won 77 races
Won 94 races
Won 200 races
Raced at every track
Won a race at every road track
Won a race at every short track
Won a race at every speedway track
Won a race at every super speedway track
Won the NASCAR Camping World Truck playoffs
Won the NASCAR Xfinity playoffs
Won the Monster Energy NASCAR playoffs
Completed 5 career seasons
Completed 10 career seasons
Earned a spot in the NASCAR Camping World Truck playoffs
Earned a spot in the NASCAR Xfinity playoffs
Earned a spot in the Monster Energy NASCASR playoffs
Raced in the NASCAR Xfinity series on a team
Raced in the Monster Energy NASCAR series on a team
Earned 50 million dollars
Owned the maximum number of cars (any series)
Hired the maximum number of employees (any series)
Completed half of the challenges
Completed all challenges
Won 10 Multiplayer races
Earned a badge in NASCAR Heat Champions