Can't argue with much of what Katana has quoted above, all makes a lot of sense. With regards Classic cars, I personally would rather not own one than have to convert it to run as an electric car. There is nothing quite like the sound of a well drilled Pinto, V6, V8, cossie, the list goes on and on, and that is a massive part of the attraction, for me anyway. I could just listen to a decent engine and it will make me smile. I have been to shows where a guy will start up his American 6.2 litre V8 and just let it slowly idle, and the sound just makes me smile, some times even laugh - there is no substitute.
In comparison the soul less sound of an electric car resembles that of a days golfing when using a buggy, and that is not what an old car should ever sound like.
New cars, I couldn't care less, as for me, they are just a means to an end, and I would use electric if necessary at some point as a day to day commuter, but never our old classics, I would rather sell and move on with my life.