Although it’s still something of a long shot, Fiat’s audacious plan to create a trans-global mega carmaker should have the rest of the car industry shifting uncomfortably.

Although Chrysler is in bankruptcy protection, Opel is ailing and Fiat is carrying lots of debt, the industrial logic is compelling.

If the three companies can be pulled together so they build virtually all their cars on just four basic platforms (all of which are modern, paid for and already in production) the rest of the global car industry might have something to think about.

Peugeot-Citroen, which produces 3.5m cars and whose sales are mainly within Europe, says it is not ‘phased’ by the idea of a mighty Opel-Fiat-Chrysler combine.

Ferdinand Piech, chairman of VW and the brains behind his company’s multi-brand strategy is rather more cynical. Although he was quoted as saying he was ‘glad’ whenever ‘less viable’ companies help each other, he also said that ‘three sick people in a bed don’t make one healthy person.’