No, bad idea.
The problem isn't lack of government sponsorship, the problem is suppression of technology. They want technology that's good, but not too good. Cars that run on renewable energy people have to buy are fine, but cars that run for free aren't welcome. Most of the really good technologies operate independently of any commercial energy infrastructure.
Nikola Tesla invented a simple rotating switch that enabled 4 lead acid batteries to provide an abundant supply of free electricity. A mock up house powered by a 'Tesla Switch' was built and tested by Electrodyne Corp way back in the day. It worked, but it was shelved. Too good I guess.
Here's another technology, the Torroidal Power Unit or TPU, presented here in the mid 90s by someone calling themselves 'Steven Mark', probably a pseudonym.
Many battery power autos were introduced in the late 1800's. Can you imagine if that technology would have advanced from then.,the oil companies had much to do with the suppression of those technologies.
France has had a lot of bad ideas of late.
What VicZinc said. Electric is the future.
I like the idea of electric cars. I also like the idea of a flying car that I can buy for $10,000 and can operate for $50 for every 5,000 miles it travels. The one little problem with that, is it's not realistic given today's technology and economy.
Tesla was a brilliant man. (I live in Colorado Springs so we are exposed to his genius) There is even a car named after him. It's even a very cool car. Then why aren't we all driving them? There are a number of answers. First is the cost of the car, which has a base sticker price of over $100,000. The second, is the range. I was just reading that you can buy an upgraded battery pack that will give you a range of 400 miles for an additional $29,000. Not realistic for most consumers. How many big commercial trucks are on the road? Is there a viable alternative for them as well?
I also hear that big oil is the evil culprit. That's just another fantasy card that some people like to play. The reason people use gas over electric is the cost. That's just the simple reality of it. Unlike the government, people have to live within their financial means.
People also blame this or that on why we don't/didn't develop wind or solar power further, when farms back in the 30's and 40's used Sterling wind generators for their power. The answer is cost, reliability, and availability. Electricity, provided by an electric company was, and is, a lot cheaper than any alternative. Just because a person doesn't like a fact, doesn't change it from being a fact.
Until someone can build an electric car that is comparable in price to a gas car, and that includes the price of maintenance and longevity, it simply won't be realistic. Remember that the replacement cost of batteries (which wear out) for a Tesla is about 30K.