from November 1967 to October 1975 with 1275 cc and 1500 cc engines and dual line braking system: Sprite from HAN9-72034, Midget from GAN4-60441 to GAN6-166303
LHD models from November 1974 with 1500 cc engine: Midget from GAN6-154101 - RHD models from August 1978 with 1500 cc engine: Midget from GAN6-212001
MGB LHD models with dual line brake system less servo from November 1967 to December 1974 - Roadster from GHN4-138401 to GHN5-367900, GT from GHD4-139471 to GHD5-368600
MGB LHD models with dual line braking system but without brake servo from September 1974 to December 1974: Roadster from GHN5-360301 to GHN5-367647, GT from GHD5-361001 to GHD5-367818
from October 1975 with 1500 cc engine and dual line braking system: Midget from GAN6-166304