My wife rode almost all the way from Oklahoma to Bakersfield California in the TC last may, Never had a problem. I wouldn't trust very many people driving me around back there though. I'm super careful when driving, and even more so with a TC. I'm very particular about road and traffic conditions, and if it don't feel right I'm stopping until things are safe. I also stay in the slow lane and never exceed 60 mph. If Conditions are windy I stop and get everyone up front and belted in. It would take an someone with a very good track record to drive me around in there though. I feel better about the subject after reading these posts, I never compared it to riding a motorcycle which is probably 1000 times more dangerous than riding in a TC. Ive never known anyone getting hurt riding in one. I know that I will feel a lot better having passengers back there once the TC is on that freightliner, Wont have to worry about getting rear ended as much. Ill be weighing close to 26,000 pounds, and be a little higher off the ground, and have a lot of heavy steel on the sides, including about 8 feet of steel going out past the rear tires with nothing back there but red lights and a license plate. I will still drive 60mph in the slow lane though. But will definitely feel more secure. My biggest fear is being rear ended by a drunk or someone not paying attention, while having a loved one back there. Now they will be much safer.