TopGear On Ice - Subaru WRX STi takes on the Audi RS3

Ordinarily, driving 651bhp's worth of hot hatchery on a frozen lake would carry the significant risk of being buttered up a pine tree. But there's something reassuring about these two. Something evolved: four-wheel drive.

Which is precisely why I'm on 40 precious centimetres of ice above Lake Kvarntjärnen. Why I've put on two stone in clothing. Why every creak and crack makes me want to give birth to a banister of super-condensed fear: we're discovering if that all-wheel-drive reassurance is backed up by actual, tangible benefits. And we're doing so on the slipperiest circuit known to lunacy.