Thanks for the pics ! On the one that shows the rear undercarriage,though I've detected a smallish round rust spot on each of the exhaust pipes

. Could this be from idling too much or long? I'm wondering if those can be carefully drilled out and some type of special drain ports

installed to allow the acidic vapor/drops to evaporate quicker.Also a designed drain port which also would make the Challenger Concept sound even more cooler

than already ! Another item are the dual mufflers ...unless there's an optical illusion, I seem to notice what look likes a real bad

"crimp" job

. I hope this does not sound too critical of this 'Beauty'

! Also, I cannot tell if the exhaust system is stainless or galvanized [ although I would expect stainless on a concept for longevity: or is there a finer way I'm not aware of ? ] ! Does anyone know ?