Talk:MERCEDES-BENZ SL 65 AMG BLACK SERIES/@comment-202.158.32.58-20140830095838/@comment-89.100.141.44-20141004133058

You should be able to unlock the next series, but as ever, you need all three cars to complete this series (i.e., to get to 100%).

On the plus side, you don't need gold upgrades on any of the cars to complete the series.