Snowmobile

[cletrac (RIP)]

Those Bombardiers look like the civilian versions that I used to see quite often out in this "frozen wasteland". The military ones have different head and tail lights and a few other minor differences. The ones I've seen had either a Cadillac flathead V8 or a Dodge flathead inline 6 for power. Some had the wheels put on the front for light snow or muddy conditions. Any that are still around here are owned by oil exploration or service companies but are used infrequently.