T-tony, I believe your build date should be on the compliance sticker on the driver door post, it represents the last step in the completion of your car on the line. It will differ from the registration date of your vehicle and could be widely varied dependant upon how quickly your car was shipped and sold. This date really comes into play for me with importing as the vehicle must be 15 yrs old as of the build date not the year of the vehicle. ie: legally I can now bring in 99 models with a build date of anytime before the 25th of may and possibly a 2000 if the build date is before that date. JIM