L'utilisation de la DeLorean ne fonctionne plus sur Android pour profiter du bug de bienvenue à nouveau, mais semble être utilisable sur ios en suivant ces manip (désolé c'est en anglais). Attention tout de même, ce n'est pas très fiable mais semble fonctionner chez certains.
1) Start RR3 as usual, in current time and logged in to everything
2a) Method A: Wait until the the "Real Racing" screen at startup changes in brightness
2b) Method B: Get to the select car screen of any race and click Race
3) Immediately after the event in step 2, quickly switch over to your device's time settings (I use 4 finger swipe method), and manually change the date forward 6 - 8 weeks. Using the spin wheel, I spin the wheel 2 or 3 times - don't advance only a couple of weeks and don't advance more than 3 months. Don't close down/restart RR3.
4) Immediately switch back to RR3 (even while the wheel is spinning) and wait for the messages. Be patient - sometimes it takes 15-20 seconds.
5) If I don't see the 50 gc message, I repeat Step 3. No need to close down or restart RR3 even at this point, and there's no need to go back to Step 2. Just re-spin the time and see what happens.
6) I do this until I see the 50 gc message or until I see the out of synch time message. If either of those occur, I completely close down RR3 and reset my time to the current time. Then I start over from Step 2. I may time travel 2 years or more before I get to this point.
Note: If using method B, I'll select a car from one of the TTT races, thus almost ensuring I get the TTT winnings if nothing else. If I do that method, sometimes RR3 will start the race when I return from the time settings. If that happens, just retire immediately and click Continue twice. To get your TTT winnings, either click "Show Me" when the TTT ending message appears, or re-enter the TTT after all the messages are done.
Again, patience is key here, as is experimenting slightly with your timing. Don't expect a high rate of success.
Good luck!