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By your username you're just a kid so I'll give you a break. I grew up driving rwd and fwd cars on roads and in conditions rare to the US.
Just to give you a quick lesson on driving and physics, 4wd does not help you stop quicker on ice nor does it help you accelerate quicker if you do not have the right tires (eg idiot with a chevy blazer on 22inch wheels). A 4wd (unless it's modded) will not plow any better through a 4 foot drift than a fwd focuse will. The only thing holding the focus back is it's mass and ground clearance but if it's a rental that you don't care about then it's all good. Also chains on your car will not help you get through a 4 foot drift, chains worked great back in the 70s and 80s before traction controls and modern rubber compounds used in tires. With all that being said there is added peace of mind and security when you're driving a 4x4 on winter roads but that doesn't mean a focus can't get you there just as easily. It all comes down to driver ability and experience.