I'm not generalizing as you seem to assume I am. I was speaking explicitly of my 30 year old car. I also have a 2004 BMW 330d (granted, not really "new" but a lot newer than said 30 year old) as daily driver, which for example is barely usable with snow on the streets. And that's with decent winter tyres. If I let the DSC do it's thing, it stalls the car (it's a manual, so the car has no influence on the clutch), because it reduces power output until the engine just dies. Disabling DSC doesn't help much either, because it's way too much torque even being extremely careful with the throttle.I also like older cars, I like the direct connection you can have with them when they are setup correctly.
But I couldn't agree with comments like 'It does handle it better than most modern cars with all their electronics I met'. I do think it is wise to maintain some objectivity and perspective. A car being modern isn't the issue, and where you can switch them off power reducing electronics aren't the issue either (yes Toyota Prius I'm specifically pointing at you here). Driving through snow is a combination between the driver and having the right tyres. Tyres didn't used to be so wide as they are as standard nowadays; narrower tyres are much better in both snow and rain. And on the flip side of that, try take an E30 M3 EVO through the snow and now take a 2021 M2 Competition and you can see how much better modern cars with their electronics are
And, as I said, I was out on Sunday, saw enough other way newer cars struggling or not moving at all, while I had no problem whatsoever. The only limiting factor was ground clearance for me. I doubt that none of the other had winter tyres. But maybe none of their drivers had any skills whatsoever.
Also, in my job I do drive various cars from very old (we're talking 1950's here) to brand-new (a few months) from all manufacturers you can imagine on a daily basis. There's enough occasions where modern electronics don't help at all, and for some cars you can't even disable them (or have to dig deep into some menus to do so).