You can See the scoreboard on your device:
And it needs some time, until the drives are updated. Sometimes you can see the the next day, and sometimes it takes up to 3-4 days.
Waze has currently some issues with the update progress. But nevertheless, they will be updated.
Just lean back and wait (which always a good idea at waze...
So you'll be able to choose one of those funny cars. And soon you'll get a sword or a crown