One thing that doesn’t get a lot of attention is that there is no distinction between ICE vehicles and EVs when it comes to documenting the expense of owning and operating the vehicle on the company’s tax return. The IRS allows the same flat mileage deduction (I think it’s 58.5 cents per mile now) for any type of passenger vehicle, even though the EV often costs far less to operate than an ICE vehicle.
That's possible. I'd be concerned about the maintenance of an EV fleet, including the cost of charging to traditional gas.