the.com/dogsled

a furry V8 that runs on snow, loyalty, and an absurd amount of frozen salmon

means A sled pulled across snow and ice by a team of harnessed dogs, used for travel and hauling in far northern regions.

from A plain English compound of "dog" and "sled" — "sled" arriving via the Low German and Dutch family (cousin to "sledge" and "sleigh") that gave English so many of its wintry words. The thing itself is far older than the word, refined over millennia by Arctic peoples like the Inuit, who paired the snow-runner with the one engine that thrives in the cold: a pack of dogs.

serum run: 1925 sled relay saved Nome from a diphtheria outbreak
calorie burn: racing dogs eat over 10,000 calories daily
top speed: teams hit 20 mph over open snow
steering: no reins, just voice commands like gee and haw
balto's fame: a sled dog got a bronze statue in Central Park

for instance

iditarod — 1,000-mile annual race across alaska since 1973, won by mushers with dog teams

yukon quest — 1,000-mile winter race between whitehorse and fairbanks, started 1984

balto — sled dog who led team delivering serum to nome, alaska in 1925 diphtheria outbreak