You can see the difference even a halfbaked attempt at a decent driving technique makes.
check the progress made by the Beetle, who tried (half arsed, i must admit) to prevent the wheels from spinning too much and compare to the other car... (Honda Civic?) who just kept the revs up and kept on spinning those wheels hoping that eventually the ice would melt under his friction (or lack thereof).
Good old Cyclist:
Ice = feck it. i'll just walk calmly until i'm past it.. oh, you need help with your automobile? Of course, my leather soled shoes and slacks are more effective than your combustion engine and pirellis!