the CX-7 VIN does not provide build date info
however:
JM3ER293*71123456
JM3 = Mazda/Multipurpose vehicle category/USA
ER= CX-7
2= With sidecurtain airbags
9=Wagon, Gross vehicle weight class C (18142267 kg)
L= 2.3 L (California (L3-VDT))
3= 2.3 L (Federal/CANADA (L3-VDT))
* = check digit
7= model year
0= hiroshima plant 1=hofu plant
123456 = serial #
