The system scales from small compact cars like the Audi A1 or the VW Polo to big family cars like the VW Touran or Skoda Superb or even SUVs like Skoda Kodiaq.
If their strategy works out, and they can introduce a system like that for EVs, they can start introducing multiple new models per year.
It isn't a bunch of Golfs. It's hatchbacks, crossovers, and buses built on the same modular platform:
http://newsroom.vw.com/vehicles/future-cars/official-the-vw-...
The MEB platform can be adapted to hatchbacks, sedans, crossovers, vans, and even dune buggies. That's what will give Volkswagen economies of scale Tesla doesn't have.
It isn't just a promise. It's the mass market arm of their EV strategy.
Yes, an Volkswagen advantage has.
> that number of models was an advantage that VW had
It is. Their MEB modular platform allows them to target every segment across multiple brands while maintaining economies of scale in manufacturing. They're good at it:
https://en.wikipedia.org/wiki/Volkswagen_Group_MLB_platform
https://en.wikipedia.org/wiki/Volkswagen_Group_MQB_platform
As I say, better planning and bigger scale.