I’ve owned and driven several older RWD vehicles and they ALL had problems in snow…Some of the vehicles may have been heavier then todays cars (my 66 Fleetwood was huge)…but it still had problems in snow due to the light rear-ends. Did fine in wet weather…but NOT snow.
My wifes Lexus ES350 (mid-size car) weighs in at 3580…while my 1970 Chevy Nova weighed in at 2,843…making the Lexus about 700lbs HEAIER…NOT lighter. The Nova was fine in dry or wet roads…but did only OK when I put 4-50lb bags of sand in the trunk…with good snow tires…The ES350 is EXCELLENT in snow…even with just All-season tires.
I never used studded snows…although my Dad did…They were great for snow…but NOT good for anything else.