Multiplayer vehicle passenger. Movement jitter

The question is about replication. I have a problem in which one character (driver) must carry another (passenger). Of course, on the passenger’s client, the driver has a big jitter, and the passenger has a big jitter on the driver’s client.
In this case, the passenger must walk by car.

I tried to implement CARY as:

  • attach passenger to driver
  • copy velocity driver to passenger on
    server tick
  • copy location driver to
    passenger on server tick

But jitter stiil exists

How can I solve this problem?