JMZ - All UK Mazda VIN’s start with this
NA1, NB1 or NC1 - These denote the “car line”
8 - Body type - 8 = 2 Door convertible
B, P, C, 6, 8 or F - Engine type: B, C, or 6 = 1600cc: P or 8 = 1800cc: F = 2000cc
2, 5,or 6 - Transmission type: 2 = 5 speed maual: 5 = 4 speed auto: 6 = 6 speed manual
00 - Production plant - 00 = Hiroshima
The last 6 digits is the serial number.