Consider this a general whinge rather than anything useful:
Ice can be dealt with using studded tyres or more than two wheels. My limiting factor used to be asthma, which kicks in somewhere around 5°C but is manageable if I don't need to put in a full effort. But now I'm struggling with the cold. Some years ago, I did a forum night ride where it got down to a low of 6°C, and while it wasn't comfortable, I didn't feel the desperate need to add to the summer clothing I was wearing. These days I need winter kit below about 15°C, adding the boil-in-the-bag jacket for warmth once it drops below about 12°C. By 6°C I'm in two baselayers, a winter jersey, waterproof jacket, 3/4s with thermal tights on top, and silk liners under my gloves and socks. And I have to ride fairly hard to generate enough heat for my hands to warm up enough not to hurt, which means I'm soaking in sweat and freeze as soon as I stop or there's a prolonged descent.
(Off-road riding is somewhat better, due to lower speeds for a given effort meaning less wind-chill. But greater risks of something going wrong that means you have to deal with a mechanical or injury. To say nothing of the muddy bike.)
I'm not sure where I can go from there. Mittens. Electric or chemical heating. Velomobile is out on storage and cost grounds. Streamer fairing (if my Streetmachine ever arrives)? Indoor cycling?
Barakta reckons I just need to eat more pies.