Getting out to have fun during winter is going to be much easier when you have an electric sled like this. The sled has a 14-inch 250W motor, a pipe battery, and a control unit. The below video shows this electric sled in action:
This is probably not that hard to make as it seems to have the same components as an e-bike conversion kit. I wish the video was in English, but if you understand the language, please do send us the translation.