be careful, tesla is not successful as a car company yet, and its not in good shape to become one either.
one day it might be, and more generally i do hope that we see more progress in the electric car world... but for now tesla only turns a profit as a car company coupled with government incentives. even then, outside of the US (and inside actually) their market share is tiny or zero with very little growth. saying that it doesn't even exist is a very good approximation to reality... if you ignore tech focused news articles and the like at least.
i wouldn't call that a success just yet... as much as we may admire the mission.