https://insideevs.com/news/427031/turin ... egade-4xe/
FCA Develops PHEV That Runs Solely On Electricity When In Restricted Zones
While I have my doubts that this would fly in the US, a transponder such as the ones used to collect tolls automatically should be able to be modified so that it knows what mode the PHEV is in, and whether or not it can enter a ZEV zone. I expect we'll increasingly see these zones here, albeit well behind Europe, so providing some method for PHEVs to be used in them during the transition to ZEVs strikes me as important.
Of course, if the implementation of such zones here is very delayed, it may be that pure ZEVs have come down enough in price by then to see mass market adoption, and there's no need to make provision for a transitional tech like PHEVs.
Still, many US residents have enjoyed the benefits of noticeably cleaner air over the past two months or so, and hopefully this will lead to a speed-up in the adoption of such zones in major urban areas with bad air.