Thread:Sklavisk/@comment-35222164-20180708172619/@comment-31458611-20180721185731

S'n'S, see if this spares you an experiment. I have the RX-8 SE tuned at 3503-2030 on D1 (primary/ playing device), and just checked how its state was stored on D2 (secondary/ assets safe/ backup device). It was at 0000-2030, meaning I'd need to part with 920 tokens (for top speed 3) if I decided to copy D2 > D1.

So to me it was conclusive. When it comes to TOUs — for cars that interest you, of course (and I assume this one does) — you first must have your resources on D1 in a state worth backing up, and then back up D1 > D2 right after applying the TOUs. This way, in the worst case you'll lose only the credits spent with other upgrades and with boosters, but not tokens.

So rollbacks don't apply in this situation, unless someday you want to go back from, say, 5555-2030 to 0504-2030, case in which you would have done D1 > D2 as soon as you applied nitro 4 (which costs 1k token). OTOH, these rollbacks are of course formidably useful when you want to max out all the 8 cars of an EDD...