When it comes to testing a vehicle or tyre’s winter aptitude, few places in the world better are suited to the job than the Finnish village of Ivalo, some 200 miles north of the Arctic Circle. The average daily temperature struggles to rise above -10⁰C in the dark months of January and February, and for half the year the white stuff beloved by skiers is abundantly present. No surprise then that Test World, the internationally-renown vehicle and tyre tester and type approval centre, chose to set up shop just outside Ivalo. But what does Test World do in summer, when its ice and snow circle turns into a massive birdbath? It moves winter indoors.