If you have the $$ Unicat has a few options
There is one with a SxS in a garage that lowers down like an elevator. The challenge with length vs people space vs toy space is a series of big compromises. Do I want my bed to smell like fuel? Is my road into the area so bad that a trailer pulling my toys won't survive? I think alot of folks take the living space and then build/buy a trailer tow the toys. Those toy haulers have been getting bigger and longer for a reason.
I love snowmobiles and I have a new one, but you would not want to start it at -30C next to your kitchen and bed...
What? Who doesn't love the smell of gas and exhaust?
What's gross is camping in -30, lol
Guess the difference with a sled and motorcycle is, with a motorcycle you don't need to fire it up to unload it.
Just an option for people that maybe don't want to tow a separate trailer.
Wouldn't really work for me as we already have a truck and bumper pull travel trailer. Can't double tow here unless the camper is a 5th wheel.
Due to payload I can't haul my bike in the bed while towing either. I'm pretty much screwed for taking my bike with me when we go camping.
Just thought it was a neat idea.