The world’s first electric loading lifestyle tool
There’s been an electric boat to roof rack loading system in Oz for almost 20 years.
Weight wise that’s actually really not bad. I looked at several models in Oz before getting a hitch mounted one. They’re normally steel and the lightest I found uses an alloy crossbar and is about the same weight as that. Still would be over the towball weight on many vehicles including all Subaru IIRC.
However mine cost about 1/4 of that and the tyres are the only part of the bikes that touch it…plus my 12 year old can load it so really no need for electrical nonsense.