Well, CO2 minimization is a whole different story/calculation. If you really want to compare (and I don't know how one would) you also have to include the carbon cost of producing the gasoline AND the electricity. If you live in an area where the power is created with hydro or via natural gas...
I'm not sure about the tech details of the cold weather problem. But, we did have some very cold weather here (-20c to -28c) and I had no problems with mine. I keep my '23 in a car port which is totally exposed to the outside cold, but does keep some of the wind off. My car is always plugged in...
Well, at least I don't call it "gas" like 99% of the people here do. Used to do advert work for a major oil and gas company and they would go ballistic when someone called the liquid going into a car "gas".
I can accept these mistakes, mostly. But the the one which drives me nuts is there/their and your/you're. After a sentence or two I just can't read the comment ... which is probably just as well :)
I had the same thing with the ones on the roof. The service guy nodded and we walked out to the car. He jumped in to the car and less than 30 seconds later he jumped out ... and it was all done. I asked him the secret and he just smiled. I don't think he used any cords or tools.
If you got a 23/24 you could have massaging seats as an option. Used it a few times in mine ... totally stupid option (but others seem to like it). Heated seats are nice, but in winter it's the heated steering wheel which gets top marks.