Board Thread:Game Discussion/@comment-2A02:C7D:C14:300:445:18C1:85CF:DAD5-20171011231154/@comment-28169398-20171012055556

2A02:C7D:C14:300:D196:B3DA:9849:36CD wrote: Thanks Amrosa. I did read that link before I posted but was not sure if it meant that I only had to unlock those three cars to advance out of the five cars that are available. Thanks once again for your help

I believe that you can advance to the next Series with only the Agera R. It is able to win all 37 Trophies in Zenith Series needed to advance to Road To Le Mans.

To complete Zenith Series to 100%, you need all of the cars to run the Showcase and Time Trial events, but those will not require any upgrades or otherwise.