In the store of nfs unbound i am unable to buy audi r8

In Need for Speed unbound their seems to be an issue where I am unable to buy Audi R8 from the shop now I have already completed the previous Battle Pass. Therefore I do on an Audi R8 but I want to buy another one for a different build so is there an issue with the shop or is it just battle pass exclusive and no one can buy it ever again.