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First of all, perhaps I should declare an interest.

In the early hours of the morning one Friday last December, I tried in vain to turn a four-wheel drive vehicle into a corner at 20mph. It slid off the road and became grounded.

Despite having permanent four-wheel drive and a lockable centre diff, there was no way out without being winched by a recovery vehicle three hours later.

That car was on standard road tyres. When I was offered a set of cold weather tyres by ATS Euromaster for this winter, it didn't take me long to decide.