Wauw you literally upgrade every powerup?! Im at lvl 11 as well, but most of the powerups I never use so I don’t upgrade them so I have more money to spend on the powerups that count.
Can someone help me please? Before the update on 14 january before you can challenge driver once, all the driver are unlocked for challenge but when i updated only Oog-oog, B'zorp, and Mcskelly were not available (guess i still level 8) but then when i reached level 9 B'zorp and Oog-oog are available not Mcskelly. But when i reached level 10 Mcskelly was not available, and i checked on my profile there's nothing crown symbol (driver Challenge) only a car challenge. And i checked on driver selection i said "keep playing to discover this driver". I saw mant youtubers after that update were able to get him.. please someone tell me.. :( (Sorry if my English was bad)