Answers: There seem to be oodles concept cars already built and solar car design competetions worldwide but no firm plans for building and marketing any surrounded by the US.
Maybe never. I don't think solar activeness can generate enough power to move a sports car at 60-80mph.
I believe there is already a solar sports car on the market...Its of late not through one of the major saloon companies. If people started demanding them...they would be manufactured....and afterwards...
NO MORE GASOLINE PROBLEMS....
Not for a while. There still trying to influence people to cover their houses near solar panels. Also, the world is still have trouble making a useful mobile powered car.
Probably not. The problem is that solar panel have a maximum amount of power they can draw, roughly 1KW/m^3. This is the maximum, term, the sun just does not allow anymore pallid to get to our surface. The best solar panel currently gather nearly 15-20% and scientists feel its is really unlikely we can reach 30%. Things resembling 35-40% efficiencies are near pipe-dreams. This effectively ability that the car must run on a propulsion of in the region of 1-2hp. You need extremely night light materials (which means extremely expensive materials) and far better mobile technology. You'd also pretty much be out of luck if there be no sun that day. That's why the lone cars capable of traveling on solar power are extremely flat (to create a ton of surface area) and can singular fit 1 or maybe 2 culture.
I assume you mean a practical, mass-produced sports car, since you can buy a painfully expensive experimental solar powered saloon right now.
The answer is: "When the efficacy of solar panels and battery goes up sufficiently to power a motor of useful size and capability, when the cost of solar panels and battery drop sufficiently to allow a reasonable selling price and insurance costs, and when someone near sufficient capital decide that a profit can be made mass-marketing such a vehicle."
Not a very substantial answer, I know, but it's the truth -- and since solar power is barely a practical vigour source for devices with far lower get-up-and-go requirements, such as heating and cooling a house, I wouldn't hold your breath.
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