My 2015 has free unlimited supercharging, so yours does too. This perk was still in place until the introduction of the S100, 2017 or so. Please drive using electricity instead of gasoline as much as possible, no matter the price. The planet and our grandchildren don’t care what the price of gasoline is. Also, it doesn’t make sense to buy a $100k car and then worry about a $10 difference in the cost of fuel.