Nope, I genuinely couldn't tell that the road was icy as there was zero slip, slide or skidding, until I got out the car and slipped over!
To be fair then you're probably not the best person to explain how tyre grip is effected by ice and show. It's completely different.
Scotty who's to say the guy isn't on budgets, or whos car wasn't otherwise in bad condition.
That was said in jest....
I've never claimed to be an expert in tyre design and there are plenty of videos of experiments/tests online if people want to read them .
All I know from personal experience last year that when I drive to work at 7am on untreated roads when it's 0c outside my summer tyres were very twitchy, you get wheel spin with not much throttle, slide on cornering and slipping under braking. I changed my wheels over at the weekend and drive the same journey in the same weather conditions the next week and the car doesn't have any of those problems. It genuinely feels like normal road conditions, obviously I'm not driving very fast as I know it's still icy out!
I think the point is that if you only drive during the middle of the day when the temperature creeps up then no you don't need winter tyres. But if you drive to work before 10am when it's below 3 or 4c then you will defintely notice the difference and be a lot safer.
I 100% agree with Scottymon, I'm prepared to spend the money the myself and other road users safer.