These range extenders have all the advantages of an EV until your battery runs low.
I’d rather have an ev with a diesel generator in the pickup bed as my “range extender” than a vehicle with constant maintenance needs.
I also dream of getting a used Nissan Leaf because most of my trips are to and from town 20 minutes away and we already had gas cars that can take longer trips. If my son wasn’t bringing home old cars I might be able to make the space for it but right now I can’t.
You realize you still have all the same maintenance burden with that generator, right?