You got 3 tuning option for a maxed 8 car Speed Acc NitroEach can be tuned with 4 perks . So 12 perks as shown , are the max . Idk what mechanic level is required to spend this 12 perks . I ' m level 29 and are allowed to spend 7 perks . Next perk will be available at level 41 ! To get there , I think I nearly need to max my garage completly . So 129 is indeed possible , but probably only , if you got all inkl . SE and IAP available cars in your garage and you have maxed them all really difficult with IAP cars . But in the future with more cars in your garage , you may even be able to spend 12 perks and boost PR to 13 xx . I did a test with my CCX . You may calculate max PR by your own . , Dn 75 CQi , 7 Opam 8 H , JwbrYId