Don't think they are as electric stuff is hot in motorsport at the moment
Well if thats the case and they create almost no sound like the ones we are sed to, then TV broadcasters better start adding sound engine enhancements so the viewers dont fall asleep..
I wouldnt mind electric....as long as they are fast, or better FASTER, and at least mimic some kind of loud sound, then i can say go for it, but so far, its in fetus stage, so i'll personall have to see it evolve.