Board Thread:Game Discussion/@comment-213.73.238.238-20161017134310/@comment-87.135.150.74-20161017162359

You will need 4 of them. They unlock at 24%, 49%, 74% and 99%. So only if you upgraded those serious expensive NASCARS you can get them. Keep an eye on the upcoming upgrade discounts, they will be for NASCAR next, besides the Regera also.