Here is a link to the announcement by Zero regarding their electric power train components being used in the Swiss 4-wheel E-Qooder. I found some of the comments in Zero's press release interesting regarding sharing their power train components with other companies:
https://electricmotorcycles.news/zer...-new-e-qooder/

The E-Qooder might fly in Europe and some other countries, but you won't see it in the U.S. unless they remove a wheel.