Finish five levels
Finish ten levels with three stars each
Get all stars in Alaska
Get all stars in Chicago
Full-upgrade your first truck
Full-upgrade every truck in the game
Improve your time on one level
Finish a convoy level with less then 20 distance
Finish a convoy level with less then 10 distance
Complete a flawless round
Complete three levels with no accidents
Finish the special ambulance mission once
Finish the special snowplow mission once
Win 3 consecutive levels
Win 5 consecutive levels
Finish Alaska mission
Finish Chicago mission
Get all stars in New York
Finish the special airplane mission once
Finish New York mission