It may be a little complex to talk about but the product you speak of is essentially a technology preview (the beta) wrapped together with a future functionalit

It may be a little complex to talk about but the product you speak of is essentially a technology preview (the beta) wrapped together with a future functionality the buyer is prepaying for. By paying, they get access to the preview now, and they will get the actual released software later when it is ready. It’s all bundled up as, as you say correctly, a product. What you’re missing is a bit of subtlety about the contents of the product, that’s all. During the preview period users are responsible (blah blah I don’t need to repeat that part yet again, right?). I think it’s not actually super hard to understand but it is admittedly not exactly like most other products. It’s a product the features of which are being rolled out progressively until it is fully ready. Meantime it is made crystal clear in many ways and repeatedly to buyers what their responsibilities are… before buying, after buying, before turning it on in settings, during driving, etc. It is very well communicated.