I have heard about wealthy people all over the world keeping big cats as pets but those are always kept in cages or their own enclosures. What seems wrong is you claiming that regular people are keeping tigers as pet. Infact people and tigers are more in conflict due to encroachment of humans into formerly forested areas.
Is this specific to cars¿? I have an EV scooter (more powerful than a moped and without pedals) and I have not observed higher tyre wear. But then again my scooter isnt much much heavier than its petrol counterpart. Cars on the other hand do see a drastic increase in weight when going from ICE to EV