Thank you for your suggestion.
There is actually a print version of fill-up history, just go to fill-up history page and click on "Full details/print version" link in the table header.
Also there is no need to delete your vehicle, you can just add a new one.
We will create an vehicle order field so that one can see vehicles in the order they want on my account page.
But if you still want to remove sold vehicle - just go to edit vehicle's details page (my account - dashboard - modify vehicle link) and there is a delete button on the bottom of that page.
Thanks and have a great week!