A lot of them, I suspect. But it's fleet average, so we'll have to see how EV's are counted. If counted as infinite, then each 2 EV sales will permit an ICE vehicle at 20 mph to be added to the fleet.
What's interesting is that I had assumed Dodge would continue just playing off the FCA fleet average, or buying credits, to keep making big-displacement ICE's. But with the 2024 Hellcat going electric, you gotta wonder what their next move will be.
Put otherwise, if even Dodge SRT is going electric, who's going to be the last hold-out?