Using the Vehicle Tracking reports you can add offset envelopes to a lot of things. Each element can have up to two (2) offset envelopes added to it. In the attached image I modified one of my reports to add a 5' offset envelope and a 10' offset envelope around the gears of the plane shown with cyan and green. I also added a 25' body envelope shown in blue. I used to be a AutoTurn user myself and have been extremely happy with all the results I have been able to get out of Vehicle Tracking. Hope this helps you out!
