The PO of one of my 2+2's had the dealer option tow bar hooked up, I wish I had kept it and sold it to someone on here, I may have pictures of it but idk. Anyways he pulled stuff with the stock engine and Auto trans, I checked the fluid in it at one point and it was just fine. I'm not sure what he pulled but it held up well. The dealer option tow bar bolted in near the bumper brackets and also into the rear bumper I believe. I will search for some pictures.