Talk:Open Sky Challenge/@comment-26535270-20180420201828

Ariel ATOM V8 - -120

Open Sky Challenge upgrades needed - -15

Completed Open Sky Challenge - +57

Ariel ATOM V8 Exclusive upgrades - -219

Completed Ariel ATOM V8 Exclusive - +63

Final calculations: -120-15+57-219+63=-234

No ANY good reason to buy Ariel ATOM V8 unless you need 100% completed game or FU garage.