After that full tank has been used, how long will it take to refill? When will the BMW’s gas tank need to be replaced, if ever?
“After that full tank has been used, how long will it take to refill?”
That depends on the use case. If the car is driven less than 200 miles, it can recharge overnight in the garage. This accounts for 95%+ of driving, and means no more trips to the gas station.
If driven cross-country, it takes 30 minutes at a Supercharger station to get 170 miles range for a Model S. A nice amount of time to grab a bite to eat, stretch your legs, or do some shopping...
https://www.tesla.com/supercharger
It’s worth looking at the cost to drive (using Atlanta, GA as an example):
BMW:
1. 12000 miles/year
2. 25 miles/gallon
3. 2 dollars/gallon
12000/22 x 2 = $1090.91/year
Tesla:
1. 12000 miles/ year
2. .300 kWh/mile
3. 85% charging efficiency.
4. 10cents/kWh
=12000miles x .300kWh/miles=4000kWh
=4000/.85= 4706kWh x 1.5cents/kWh = $70.59/year (EV rate between 11 PM and 7 AM)
Even using full-rate electricity, the Tesla would only cost $350 a year to fuel.
“When will the BMW’s gas tank need to be replaced, if ever?”
How many luxury car owners keep their cars past 200K miles? The first article below involves a Tesla Model 90 that hit 200K miles, while only losing 6% battery capacity.
http://www.teslarati.com/tesla-model-s-reaches-200000-miles/
http://www.teslarati.com/how-long-will-tesla-battery-last-degradation/