Talk:Speedrush TV Challenge - Season 2 (v5.6.0)/@comment-77.189.1.217-20171203122510

to pay 18 gold for drivetrain upgrade is good, you need it for 50% of completion for the series plus this flashback.

18 gold from 50% and the upgrade costs 18 plus 25 gold from flashback, 25 gold in profit! very nice event