Somewhat edited version of Article 17, and raises the question as to why, the first condition wasn't referenced.
The data subject shall have the right to obtain from the controller the erasure of personal data concerning him or her without undue delay and the controller shall have the...
A complete waste of time.
If you read the helpful links that have been posted above, you will see that as Euro Car Parks are members of the BPA, they are permitted to obtain details from the DVLA.