I don't get it
Why do some people in UK still think they are snow tyres?? They are winter tyres. Not snow. I know it's complicated lads, but they are winter tyres. Not made to only drive in snow, but temps lower than 7c.
By the way, in answer to the question, what happens if you use them in summer, answer nothing. I have mine on all year. They're supposed to wear quicker, but I've not noticed.
Imagine, some people will risk not only their own lives, but their family's lives and any poor sod they may collide with when they lose grip, because either they couldn't afford a set of winter tyres, or could afford them, but couldn't be bothered because they thought they were only for snow conditions.
Winter tyres are cheaper than summer tyres here, is it different in UK? All the big boy window cleaners earning thousands a week, and it's an issue to change to different tyres to suit the weather conditions