[dgregd]

Car companies develop platforms on which they build many different models. For example in VW cars you can find exactly the same parts in Golf, Touran, Passat, Tiguan and many other models.

All these 3 separate plains probably could share 90% of parts, software, avionics, that VR helmet, etc. Having fewer constraints it would also simplify the plane body design.

Just image car engineers are asked to design one car to replace off-road, city and van cars. Even Elon Musk did not come up with that idea.