Wow Micheline seems to be inventing car inside the wheel
By having more mechanical parts near wheels the losses will be less.
Rahulkool could you please provide link to the article?
As for cost while changing tyres,
- Because of car being electric normal running saving will be very much, comparitively changing entire assembly will be cheaper
- Although entire wheel assembly is changed, other parts than tyres can be refurbished and re-used thus lowering cost impact to end consumer
- By targetting volume the total cost can be lowered.