My experience has been the performance car dealers sell on consignment and jack the prices way up. If you don't you are one of the few.
I have nothing to do with performance cars, we are a Subaru specialist..lol
Regards consignment dealers, often times( but certainly not always) the reason prices are out of line can be because the consigned is overly proud of what he has, price wise.
As the dealer has no money tied up in a consignment, they do try to make it worthwhile to fool with. If it sits around and rots no skin in the game
It’s makes one wonder why such people don’t try to get rid of cars they overprice themselves.
Sometimes, I think such dealers should pass on such cars that don’t have any valid meat left on the bone.