serial number?
Hi Joe,
can't tell where you live (incomplete profile), but many states include the Vehicle Identification Number (VIN) on either the registration, title, or both. The last four digits of the VIN tell you what number your car is for a given year. The VIN is also on the tag in the dashboard on the driver side, and possibly also on the door frame (I don't feel like going outside to look).
I believe your owner's manual also describes where the VIN can be found.