How Tesla is changing the future of cars

SOURCE: Car-Brand-Names

The economic principle  I will explore is How Tesla can increase the range of their car batteries without problems like overheating and keeping cost down for the average consumer. The overall question I will research to help explore the economic principle is How is Tesla changing/upgrading their batteries for better efficiency and what can they do to keep the cost of the car down.

3-4 sub questions that will help me answer my overall research question are: What's the farthest range achieved by a Tesla battery. What New tech is being developed to help increase the range. What Is Tesla's control over their cars and the batteries.
What can Tesla do to decrease the cost of their cars significantly

Links to 3-4 reliable resources that can help answer the research question:
thedrive
geek
nytimes
insideevs