Talk:Open Sky Challenge/@comment-1.32.76.226-20150524024331

i only bought the ariel atom 3.5 and caterham seven 620, and i can't seem to win enough trophies to win the euro supercar duel series. Do i NEED to buy the Ariel Atom V8 to win the necessary trophies to unlock euro supercar? if caterham is sufficient, how maany upgrades/pr is required to win just enough trophies to unlock euro supercar series?