Talk:Endurance Kings/@comment-32643469-20170722200530

I can confirm that all tiers can be unlocked & 75% completion is possible with Porsche 919 - PR 94.0 : 2322222

Only condition is you must own one of the 2 ( Audi or Toyota ) else you will require to max the Porsche probably.

PR for last tier 22 is 86.0

I hope this information helps :)

Good luck