User blog comment:HwyStar/About me and RR3/@comment-31776838-20180813100224

Hi,

1. whatever the serie or event, you could have fun or challenging everywhere ;-)

2. full garage is not absolutely needed and many cars are the same than others (FE, Nascar ...)

3. it's a very difficult goal, because you need to unlock series in the good order and need a lot of GC for that. Use the Upgrades Strategy For 100% Completion to save your precious GC.

Good luck