Car dealers get ample margin for selling and again comfortable rates for repairing and frequent preventive maintenance. Every fault at the vehicle is reported to the factory, if not by the vehicle itself, then by the repair shop. The manufacturers know more about the health of their producs then my health insurance about me.
And now compare this to our VM dealers.... Plonk
VM dealers also get margin for selling. Their repair rates can be determined by themselves, which is why you'll find as much as a 100% difference in price between one velomobile dealer and the next. Concerning the cheaper one of those two, I actually made a point in conversation with them about their rates being too low.
Concerning the situation with small car companies: not even by practice, but by law, you go through your dealer. In all of Europe, you have a contract with your dealer, not with the factory. By law, Jan is allowed to tell you to go play hide & f... yourself if you go directly to him to fix a problem.
Also, depending on how Jan has set things up with Daniel Fenn, Eggert Bülk, Jens Buckbesch, velomobiel.nl, Intercity Bike and other designers, he might not even be responsible for structural design errors.
So how does this actually work with a comparable car company?
Donkervoort is a Dutch car company that has more employees than Velomobile World, but actually builds less cars per year than Velomobile World builds velomobiles. Their cars are a more complex product (a lot more parts) than a velomobile, so this is not so weird. They are also very, VERY expensive (second hand, excuse me, "pre-owned" Donkervoorts are sold for as much as €200.000).
They used to sell through a dealer in Utrecht, but since that has gone bust, Dutch sales go through the factory. That is an exception: International sales go through dealers: In Germany, they have a subsidiary of the company, which is, you guessed it, a dealer. I believe they also run their own dealer in Belgium, and for the rest of the world they basically have partnerships.
If you have a problem with one of their cars, they will first figure out why you didn't go to your dealer, and they'll try to help you, just like Jan is doing here. Even though they support the Dutch Donkervoort Touring Club, they are not active there for direct support either.
The fact that Jan is trying to help us directly here in multiple languages that are basically foreign to him is quite remarkable and - as stated before - a wrong choice in my opinion.
PS: Concerning support, I complain quite a bit myself (to my dealer, mainly, and - when asked for feedback a while ago - also to the factory), but Velomobile World has delivered better products than [A-level road bike brand] did for me in the past (I had a tearing carbon frame), and since my road bike dealer actually DID tell me to go play hide & go f... myself, I've also received better service up to now.