When you open the driver's door you should see a black sticker, about 4" x 3", either on the frame or on the side of the door. It will tell you the production month/year.
12 E70 X5d Black Saphire/ Tobacco
08 E92 M3 SG/Fox Red Gintani Race, RG63
09 E90 335xi Crimson/Saddle 02 E46 M3 Cab Imola/Black (Sold-RIP
)97 E36 Z3 1.9 Atlanta Blue/Tan (Sold)