VillageIdiotDan said:
I've put rain tyres on my wife's Slk and can't help feeling that's more appropriate for the PHEV too. I wonder if they'd perform any better in the snow
I didn't know that rain tyres even existed! But they do! So how do you know if you're going to need them? I'm guessing it's based on the idea that you'd be more interested in a bias towards safety in wet weather, rather than 'performance' grip and handling in dry weather. It doesn't look as though rain tyres are anything like winter (below 7oC) tyres though. Winter tyres are of a softer compound - not suitable for and slightly dangerous in summer conditions - and if it's snowing, the tread of a winter tyre is designed to collect snow in its treads, as nothing sticks to snow better than snow. Presumably rain tyres are in fact 'summer' tyres and therefore not of a softer compound best suited for below 7oC.
I've often wondered, do all season tyres wear-out quicker than 'summer' tyres? Presumably they must be of a slightly softer compound than pure summer tyres. I've had 'performance' related summer tyres in the past on both cars and motorcycles, and although they give a nice, soft and quiet ride and have plenty of grip, they definitely wear out quicker because of the grippy slightly soft compound from which they are made (especially if you go anywhere near a racetrack).
I have Pirelli Sottozeros fitted to my PHEV for the winter (here's a picture!) and they are much quieter and smoother than the summer Toyo R37s. But then Pirelli is a more expensive 'premium' brand. I bloody love winter tyres and also like talking to anyone who'll listen about just how good, and how much safer, they are. Not everyone is interested (not because I'm in any way a winter tyre 'bore', although I've noticed a glazed look come over people's eyes sometimes - like that of a dead fish or a blind labrador) especially when they find out how much they cost and how complicated it all is with TPMS valves and (preferably) an extra set of wheels to put them on.
I'm still surprised though in wintery conditions at how many £50,000+ SUVs (or even worse RWD BMWs and Mercs) I see sliding about and burning off the treads of their no-doubt expensive summer tyres, because they don't have winter tyres, I mean it's not like they couldn't afford them is it? The cost of fixing one, small ding or scrape in any expensive car these days - never mind any sort of insurance claim - would pay for a set of winter tyres, wheels and TPMS valves too.