Rebates on new cars are just handouts to the big corporations, anyway. I’d much prefer no blanket rebates on any cars in favor of a system that focused on getting discounts for the poor/working class. (Well, public transit and micromobility would be even better, but that’s a different story).
For anyone who thinks getting the % of EVs up is more important than being fair, you’re wrong. It’s more environmentally friendly to continue to drive an already owned ICE car till it can’t be repaired to drivable condition anymore than it is to swap out a working ICE car for a new EV.
The poor often don’t get new cars until they are forced to (i.e, a crash or conplete breakdown), so you’ll likely get more environmental (and social) bang for your buck by focusing public spending on them.