mid ohio sets aside roped off areas for people with certain cars to park...usually like porsches, hondas, corvettes, minis, mazdas, pontiacs, etc...usually cars that are featured in the races and each "club" has certain events that they do like interviews with race teams, raffles, etc. when you order tickets online, they give you all of these ticket options and on the last pages are the corral tickets...it usually includes entrance and paddock passes and it allows you to park in the infield in your corral spot
does that make sense?