So my plan didn't work...
Whole story:
So on the other day while I was at home, I was thinking about the new shard ('Chicane'), and suddenly I came across to an idea of getting free SpeedBoosts. Because you get a free 600 SpeedBoosts when you reach Lv 3 (at the new shard), I say: maybe I can get numerous '600 SpeedBoosts' by repeatedly creating drivers and making them reach Lv 3! 💡
So at the same night, I launched NFSW, and created a new driver at the new shard. Unfortunately, when I reached Lv 3, nothing happens. I continued levelling up, but still nothing happens.
Then I logged on with my second account, and see if the trick will work on the new shard (I have never created a driver there before), but somehow, it failed. I managed to do that with my main acocunt, and yet I failed with my 2nd account.
So that means my plan has failed, in additon to that, the original successful trick failed too