Here is the full list of all 15 Race me now achievements.
Buy your first car
Win one game
Win a race in Summer Valley
Win 100 games
Win all races in a season
Buy all cars
Buy all cars in Street category
Buy all cars in Sport category
Buy all cars in Muscle category
Buy all cars in Super category
Finish a race last
Win a race in Summer Lake
Win a race in Winter Ocean
Win a race in Winter Valley
Win 10 races