[gutnor]

They build platform across a lot of models shared between various brands of the same group. So what they lose supporting gas and electric, they (could) win it back with a diversity of models and form factors.

Also it is not before the next generation of cars (i.e. 10 years) that the bulk of their sales could really be mainly electric. (the world is not like California. A lot of people interested like me simply can't get an electric car - not even because of lifestyle, just because of infrastructure) In the meanwhile they will need to provide hybrid or simpler hybrid.

And traditional constructor are experienced at designing roomy interiors. Designing a single interior across a range is probably more a win than a loss.

BTW it seems that nowadays every constructor has some model ready to commercialise either in 2018 or 2019. Will be interesting to see if they really can hit their target and what Tesla competition is really looking like. Interesting times.