Board Thread:Game Discussion/@comment-172.250.84.222-20150724011635/@comment-26715739-20150724055242

2 possibilities:

1) nope, this is all you get

2) the next release will add extra cars to these career series (which is why they got picked).

I'd say it's probably 75% likely that it's option 1 (since many of these special event cars end up in their own series - Cayman, Dezir, Gran turismo Race Spec Ltd Edition)

The only hope is because the 2 new series are named fairly generically.