You don't need a solar powered car. You just need an electric car, which we already have, and you can charge it using solar power.But in this instant, gas is the cheaper option, not too mention I don't think you're going to be able to create solar powered cars to compete with gas. What about solar powered airplanes are those viable?
I'm not an aerospace engineer, so I have no idea if an electric plane is viable. If we still have to use fossil fuels for airplanes, I can live with that. What percentage of oil is used for airplane fuel, anyway?
As I said, 2020.To your last point I say this... Solar and green renewables must be a portion of our energy portfolio, but can only take baseload duties when they can assume that role in a price competitive manner to traditional fossil energy.
If solar was ready to assume baseload duties in a price competitive fashion, they would already be doing so.