The 4xe never depletes it's battery, there is about a 15% reserve so a full charge from empty would be closer to 2.35, but regardless there are many other reasons for PHEV, you are using less emissions (which is really the goal). I don't want to take this down a rabbit hole but I would much rather see consumers get tax credits/breaks than the big oil companies whom have been getting them forever. The EV tax credits are a drop in the well compared to the billions, upon billions big oil has saved just over the last few years through government tax breaks and deferments.Most places in this country have high energy costs, in my area 16 cents/kw-hr with std rate. So assume this it would be about 2.75 per charge, assuming a 22 mile range, that is about the equivalent I get in my rubicon with 1 gallon of regular, which is about 2.75. So break even at best.
Also NOTHING IS FREE, someone else is paying, people in this country need to wake up and stop looking to free load even though our politicians plan this free lunch scam.