How do I find out when my car was actualy built?

I just bought my RX8 last week (on November 3d) - but I have no idea when it was actually built or how long the dealer had it for before selling it to me ...

Is it writen anywheres?

Thanks

 

The month and year are stamped on a label in the driver's door jamb.

 

Good question. Also, never buy a car off the sales floor unless you like your seats well worn and doors well worked