Bridge Constructor Stunts

So I played Portal first and loved it. Tried the Original with the Addons and the Trains DLC and they are good too, not as good as Portal, tho. But Stunts is not a Bridge Constructor at all. You drive the car and the speed matters a lot. So it doesn't depend only on the bridge (or ramps) you build. First half of the game the ramps are already there from the beginning and only need minor tweaks. Way to easy. Way to boring. But it's not more interesting a the end either. Controls are also frustrating. I played with keyboard and mouse and every time you try to select different materials it scrolls completly to the right side of the map.