evo's Henry Catchpole takes the new 991 Carrera 4S, the latest four-wheel-drive Porsche, on a wet and icy drive through Austria to test its all-weather capabilities. Read the full review in issue 179 of evo, now on sale: http://www.evo.co.uk/news/evonews/287476/evo_magazine_february_2013.html

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