It's generally ok on winter tyres. Yesterday on approaching home up a steep hill a car with horse trailer was jacknifed at the top with another car stuck in hedge as well.
I stopped, applied all the brakes and got out to help get the horse out and figure a way to clear the vehicles. After about 5 minutes my car slid down the hill about 200 yards. Bit of a Buster Keaton moment with me trying to run on ice to catch it before it collided with oil tanker at bottom of hill! I ended up sliding down the hill on my back. Fortunately the car caught the verge and that stopped it. No damage which was good!
