What Happens to Extra Wheels and Wheel Tokens in Monopoly Go?
The wheel tokens in Monopoly Go! have been used to spin the wheel on certain spots on the board to build vehicles. As you and your friends used the tokens to spin the wheel on various parts of the vehicles, you'd win various prizes (some of which are only available for a limited time). It's been a fun activity to do with your friends as the event has progressed, but now that it's coming to a close, it's time to either use or lose those extra wheel tokens.
Thankfully, it seems that the developers have already come up with a solution to this problem so that you don't feel that any of your unused tokens are wasted. If you still have wheel tokens at the end of the partner event, they'll be converted into either in-game Cash or Dice Rolls.
Cash can be used to purchase various properties in-game, meaning you'll be reaping some rewards from the event (even if you didn't want to partake in the Hot Rods event while it was happening). Dice Rolls, on the other hand, will allow you to move further on your turn, again bettering your chances of performing well in a game. After previous partner events, the temporary currency has been converted to either of these options, preventing it from going to waste.
It's not entirely clear just yet which of these two options your extra wheel tokens will be converted into — but regardless, you'll get some use out of them once the event is over. Even if you don't want to build more cars with your friends, it may be a good idea to continue to stock up on them through the end of the event to help your stash some more Cash and Dice Rolls in-game.