History of the 100:

The 100 is the first real Big Healey despite its 4 cylinders.

The mechanical basis: Austin A90 engine

transmission, standard BMC box for the BN1.

The 100 was built in two variants:

the BN1 series, with three speeds, was built in 10,000 units and the BN2 series with four speeds, built in 4,600 units.

The 100 M was built in response to user demand for more performance, production: 1159.