US, and also through northern Mexico and southern Canada, through 30 cities. The sleep timer was brought back in this version. It has an improved traffic model. 18 Wheels of Steel: Pedal to the Metal requires OpenGL This installment is thought to be the 2nd most popular game in the series, with 18 Wheels Of Steel: Haulin being the most popular. There is also a map editor but it has bugs but also the game comes with a new map with new cities like Sacramento and a couple new mexican cities but it looks a lot more different than the original. It also has the fastest map to date besides Haulin'.