There is an improved traffic model as well as airplanes, helicopters, and trains with authentic sounds.
[2] In this installment, released in 2004, the user can travel across the entire continental US, and also through northern Mexico and southern Canada, through 30 cities.
It also has the fastest map to date besides Haulin' and is the first trucking game to feature more than one country.
[3] In this updated installment, the player can travel through the United States, as well as southern Canada, though it differs from Pedal to the Metal in that Mexican cities are not present.
Other graphical features such as dynamic dashboard gauges were replaced with simple inanimate textures, although this and minor bugs were fixed with a patch released by SCS Software in 2008.
The game does not require a powerful computer to operate properly since it can run on most older PCs.
[5] This installment of the game is similar to and has the same gameplay as Haulin' but features newly renamed companies, 2 new trucks, and 3 cities in Mexico added.
The player can no longer drive around in free roam unless they decide to go around the map during a delivery, but they can only pick a job offer from the selection menu if users have met its requirements of having multiple new trucks and accomplished deliveries.