It's definitely possible. It just depends on local gas and electricity prices.
For example, in CA current regular grade fuel is about $3.40/gal. A Prius gets 60mpg, which works out to 6c/mile.
For electricity, the average rate in CA is 24c/kWh. A model 3 uses 250 Wh/mile which works out to 6c/mile.
So exactly the same price per mile. A small change in either fuel price could advantage one or the other.
Of course you can take advantage of overnight lower EV charging rates, or drive to an area with cheaper gas, but at least with current average energy prices, there isn't a huge difference in per mile energy consumption costs.
For example, in CA current regular grade fuel is about $3.40/gal. A Prius gets 60mpg, which works out to 6c/mile.
For electricity, the average rate in CA is 24c/kWh. A model 3 uses 250 Wh/mile which works out to 6c/mile.
So exactly the same price per mile. A small change in either fuel price could advantage one or the other.
Of course you can take advantage of overnight lower EV charging rates, or drive to an area with cheaper gas, but at least with current average energy prices, there isn't a huge difference in per mile energy consumption costs.