Whilst freak examples of effective period Japanese Anglo Saxon industrial cooperation have been known, [0] surely British Leyland is stretching too far. In fact BL's board did claim to Thatcher that they were going to build a new small family car with Honda about this time, but management only wanted more money to avoid hassle with the shop stewards.

[0] https://www.thisamericanlife.org/561/nummi-2015

Edited for clarity and language.