Hi,
Income Tax (or Advance Income Tax) in Annual Token Tax of your Motor Vehicle is adjustable in FBR Annual Tax Returns.
Private Vehicle Tax u/s 234 under code 64130003 is relevant filed to enter details of your already submitted Income Tax in your car's Annual Income tax.
This is the reference field of Income Tax in your car annual token tax:
Here is the Pic of FBR annual return tax form for reference.
Here is the reference of FBR document stating relevant section of Motor Vehicle Token Tax.
Note:
1. Car must be in your name and also declare in your asset in wealth statement in your FBR annual returns.
2. You can also adjust new car purchase Withholding Tax or Used car purchase income tax in your annual returns.