Back in the 80's you could get mud/snow tires that were pretty much all terrain thread pattern, right down to 13". I had a set for the old Cavalier wagon, used to follow the jeeps up the river and mountain. Now its all about the rubber composition and temperature, not the depth and width of the threads, mud and snow tires have gone their separate ways.
Somewhere there's a DC10 struggling to get off the ground. I'm not a fan of wings on street cars, I like low key spoilers, but not something that you have to custom order from Boeing.