Talk:Research & Development Update/@comment-26536836-20151001155045

Don't update before claim your mastery rewards.

Some of  Car Mastery Rewards  were reduced such as  Camaro Z/28  and  Datsun 280Z 's  Extra Tank reward is reduced to 3 from 12,  Shelby Cobra 427 's  Extra Tank  reward is reduced to 6 from 12,  Renault DeZir 's D class free upgrade is reduced to 1 from 3 and some of mastery challenge's first position credit reward is reduced and probably many more.