Vehicle Maintenance and Service Tracking

It occurred to me that the world needs a PHP/MySQL vehicle maintenance and service tracking script.  There are plenty of geeks that love cars and maybe even have two or three of them.  As any used car owner knows, maintenance and rebuilding is very important.  I just simply want a web front-end open-source script that allows the user to enter details about their car and have a ticket-based system to track things that need to be fixed on their automobiles.  Do you agree?