This has been rumored in the states for many years, but has certainly gotten more serious these past couple. Over a decade ago, California passed a law requiring all intakes to be CARB (California Air Resources Board) approved in order to pass their state inspections. K&N and others now sell intakes with CARB stickers. This was just the beginning as just this past year, APR and other major aftermarket tuners have stopped selling their catless downpipes and "stage 2" software to comply with US emissions regulations. I even heard some rumors of
tuner shops being "raided" and fined by the EPA.
EV is the future and the future is now. Although things like factory farming contribute far more greenhouse gases than our sportscars do overall and most tunes actually lean out the a/f mixture to burn cleaner and results in better fuel economy, the ICE aftermarket car scene will continue to be restricted and fined until it no longer exists. I dont necessarily see tuned ICE cars being completely illegal in my lifetime, but I do expect heavy taxes, fines, and expensive fuel prices for sure!
The good? Well, EV is better for our environment and health in the long run. EV vehicles have lots of potential and have 100% torque off the line. These manufacturers just need to work on driver engagement and handling of these heavy machines... maybe Lotus will unveil something amazing these next few years!