You can see the air of superiority on the faces of just about all drivers of 4WD vehicles in this weather, be they Range Rover or Suzuki Jimny drivers. And in one specific sense the owners of 4WDs are right to feel better endowed to deal with the conditions than the rest of us. 

Because any four wheel-drive vehicle does indeed generate better traction than its two wheel-drive equivalent, on all surfaces and in all conditions but never more so than when it snows. But more cornering grip outright? Not necessarily. 

How so? Lateral grip, in other words the sort that your vehicle generates when it is cornering, is completely different from traction, yet more often than not the average 4WD driver fails, I suspect, to realise the difference between the two. 

Video: Winter tyres vs 4x4

Bottom line; on any surface but especially on snow, you can get going and you can develop far better traction and initial acceleration in a 4WD than you can in a 2WD vehicle, but when you reach a corner you will NOT be able to get round it any faster. Which means you are every bit as likely to fall off the road once you’ve got going in a 4WD than you are in a 2WD.