It is a clever campaign to dupe uneducated drivers to spend on tyres that are not needed.
Just drive safely depending on the road conditions and temperature.
Sorry dear, the temperature has just dropped under 7 degrees so we can't go out yet,I'll just change the tyres, should only take 3 hours............
3 hours later, I'll just change them back, it's just gone up to 10 degrees.
What a farce!