Board Thread:General Discussion/@comment-25956839-20160116000325/@comment-25956839-20161227201810

Ariel Atom 3.5 doesn't need any upgrades to help with 100% completion of the game. Ariel Atom V8 needs 234 to fully upgrade it for the Ariel Atom V8 (Exclusive Series). If your Ariel Atom V8 has been upgraded past pr w/R$, you need to calculate the remaining upgrades required, using the upgrades table on the car page. Yes it can get complicated and takes time to calculate.