Dragoneye, first, I don't think you have to worry about the end of fossil fuels. At least in our lifetime.
But. Speaking hypothetically, if we did, and you wanted to "revamp" your Camaro, IMO, I think it'd be way too much effort and cost way too much money to be practical.
Besides the enormous cost, there are many other issues, ie; cars built as "electric cars" are engineered that way from the start. The new Camaro for example, weighs way too much to be "revamped" to an electric car. Unless the factory chooses to build an electric Camaro, IMO, the cost for an individual to "revamp" would be too much.
Ed