Talk:Hot Wheels Twin Mill™ (Championship)/@comment-84.140.101.86-20180119224450

which of the next categories should be Upgraded FIRST for the twinmill?...& WHY? (which of the next two categories is more important when i wanna get more nitro for my twinmill?...i already have some topspeed-upgrades)

NITRO or nitroPROKITS

(there are enough engines in the championship-boxes... so cards shouldnt be a problem)