Jack it up to see if you have 1 or more wheels dragging (brakes, bearings, interference).
Check your tire pressures: steer should be higher to reduce drag and profile. Drive wheels soft for larger footprint and traction base.
Other than this, even if the tires are new, a tread pattern and tread material unfriendly to ice and snow traction is the problem. It takes real rubber to stick to ice. All the new tires from overseas are made from artificial compounds but are cheap. So, no traction. BTW: on mine I had a flat from a thorn. No steel belted 'screen matrix' in the tires found. WTF ???. Applied rubber cement. The tread DISSOLVED at the puncture site and I would up with a 1/2" hole in the tire.
Heck, my golf car (electric one is heavy from batteries) is really impressive in deep snow. Gas one not so good (probably too light).