Way too many entries with "0 MPG". What's up with allowing people to register a car, but never enter any data? Really dilutes the 'value', and doesn't adhere to the mission statement of the site for the users that are interested in comparing /researching fuel economy data. Write a sub-routine that removes a new entry after a period of time if it still contains "0 MPG". This would get rid of the clutter in the Vehicle List.