Our translation from Norwegian to English is crude (courtesy of Google Translate), but we think we understand the gist of the Klikk.no article and accompanying video.
Basically, a Tesla Model S P85D without studs or tire chains is challenging a snowmobile on an iced-over lake that's covered by a thin layer of snow. The snowmobile is an 800-cc, 160 HP "Lunx Boondocks" model.
Snowmobiles perform best on snow, so this iced-over lake is not ideal for the sled, but the P85D isn't exactly at home on ice either.
The sled driver claims that on just snow, the snowmobile would've best the Tesla. Probably true. But here on ice, it's the P85D that wins the race.
Musk Tweets Of Unlikely Race Between Tesla Model S P85D And A Snowmobile