This might get them all hot- good Chance you get away with it and they change the rules next year-, bring another normal car if worried, but it IS exactly the rule 1 3/4" width the entire body. Adjust offset to get DFW on rail with back wheels off rail and centered. Test roll against a yardstick to see if car tracks correctly- adjust offset and steer- repeat- mark glue. Any CUB can do all the work.