I don't really see the need for electric movement or heat. No one else drives my car so they don't get moved. On the off chance they get bumped it's no big deal to fix. The car stays in the garage so no need to de-frost. And if the weather is bad it's not going outside anyway.
I'm not a purist who thinks you shouldn't change the car. I've changed enough on my own, but adding electrical gadgets to a TR7....just one more thing to go wrong.[:)]
Here's a pic of my mirrors. Clearly not original but I think they fit the Wedge quite well.
Craig '75 2.0 FHC