The bailiff says the warrant is against your vehicle

The bailiff is talking nonsense.

When an authority files a request for the issue of a warrant of control for an unpaid traffic contravention debt, it is made against the respondent, for the amount due to be recovered as if it were payable under a County Court.^[1]

The authority may instruct bailiffs to recover the amount due by taking control of the respondents goods using the prescribed enforcement procedures.^[2]

The bailiffs must give the respondent, now called the debtor,^[3] a Notice of Enforcement at least seven clear days before taking control of goods.^[4] From that point, the property in all the goods of the debtor, except goods that are exempt goods, becomes bound.^[5]

If the vehicle involved in the traffic contravention is not owned by the debtor, then the vehicle is not bound for the purposes of the enforcement power, and the bailiff may not take control of it.^[6]

There no such thing as a warrant being against a vehicle.

^{[1] Part 75(3) of the Civil Procedure Rules
[2] Schedule 12 of the Tribunals Courts and Enforcement Act 2007
[3] Paragraph 1(5) of Schedule 12 of the Tribunals Courts and Enforcement Act 2007
[4] Paragraph 7.1 of Schedule 12 of the Tribunals Courts and Enforcement Act 2007
[5] Paragraph 4(4) of Schedule 12 of the Tribunals Courts and Enforcement Act 2007
[6] Paragraph 10 of Schedule 12 of the Tribunals Courts and Enforcement Act 2007}