I just learned why Bombardier created the B7 snow mobile machine, as a reaction to the tragedy of his son's death resulting from a blizzard blocking roads

 His son had peritonitis, and the roads were impassable becuse there wasn't yet a snowmachine that could get through the blizzard and snow drifts.

So he created the B7, seven seater Bombardier with caterpillar tracks in back and snow skis in front

Found in the new format of Road and Track magazine, the June July 2021 issue, which is a lot more like a blog format, fewer pages per article, very short attention span theater, with more interesting articles than they used to have