I think that "driveable" option is a left over from bobs track builder and or an rfactor export setting..... which wont work for AC. . that section needs to be named properly to be driven on. something like 1ROAD_01 etc etc.thanks for the reply. i created a track on sketchup and added it to an xpack. i selected drivable on Xpack and then Drivable again on RTB but my car goes pass it like a ghost :/ damn,i will try to see that cut terrain option.![]()