Selling a part
A part sale is logged like any other entry, with the buyer, amount and date, and it counts against your running costs.
Record the part's name, the date, what you received, who bought it, the car's mileage and any notes.
Money coming in from a part sale is subtracted in your running costs, so selling the original wheels after fitting a new set is reflected honestly.
The pencil menu on a part sale offers Edit, Change date and Delete.