My friends, we are witnessing an industry revolution in the making. Most likely, oil prices will not retreat to the level of sub-$2 gallon. As a result, the evolution in automotive technology will keep progressing. And it is a welcome change considering that the internal combustion engine has been around for over 150 years (with relatively minor modifications to the original form). Which other technology you use everyday has lasted this long? The VCR? The cassette tape? Film? Even computers have made tremendous strides (doubling in computing power every 18 months).
Electricity is the future, and new car companies can and will now rise to challenge the old ones. As anyone with an engineering degree can tell you, making an electric car is a pretty simple endeavor, with the constraint being battery capacity. It is simply a life-sized version of an electric remote control car that we've played with as kids (no transmission and much fewer moving parts).
Remember what digital cameras did to Kodak? Kodak went from an 80,000+ employee company to a company of under 30,000 employees and got removed as a DOW component within 5 years of the popularization of digital cameras. But the industry grew. Instead of people spending billions of dollar on Kodak's film, people now spend much more to buy and replace digital cameras from all the major consumer electronics firms. Film was around for just about as long (150 years+ since the first Daguerreotype).
High gas prices will do the same to the internal combustion engine. Companies will rise and make electric cars, and revenue will flow to these companies instead of oil companies and the Middle East. Firms that engage in battery and energy research and production will also benefit. Electric motors are superior to gas engines in every way possible (less noise, more efficient, less maintenance required, better performance). Go to youtube and you can find plenty of videos of homemade electric cars demolishing the likes of Ferrari and Porsche in drag racing events.
Tesla is only the forefront of this tidal wave of change. Others will follow. Can you say Schumpeterian Revolution?