Where gas is more expensive, people will tend to have cars with higher MPGs. MPG is even worse among the luxury cars that compete with Tesla That's the key qu

Where gas is more expensive, people will tend to have cars with higher MPGs. MPG is even worse among the luxury cars that compete with Tesla That's the key question. If someone is getting a Tesla because they care about mileage, they probably were not driving a 20 MPG car beforehand. If they were getting it to show off that they can afford a $100,000 car, then maybe they were.