Seems like yet another own goal. If 12 states are now following the CARB model, and european emissions for both petrol and diesel engines are getting ever more

Seems like yet another own goal. If 12 states are now following the CARB model, and european emissions for both petrol and diesel engines are getting ever more stringent, why would automakers even want to bother with the remaining 38 states that have more lax standards? I'm not saying it's equally easy to comply with CARB and euro standards, just that the effort involved in meeting both of those is probably not worth skipping out on just to sell cars in less-populated states. So, pass a pointless regulation that does nothing but point out how limited your power is?