I have ran both and they are both very fast!!! At Eldora you feel like you keep the same very fast pace throughout a lap...kinda like going 100mph on the road...you dont feel the spped till you get near the fence or pass a car......at the burg you feel the speed at many times during one lap...i think it has to do with the up hill-down hill straight aways that load and unload the car...it feels like the bottom of a huge roller coaster hill you get the zero to 60 feeling in a second! Both are fun and can kill a car quick!