Any hint of an incline and it's going nowhere. Your 911 had the engine weight over the rear wheels, rather like my old Sunbeam Imp Sport (but rather quicker), so traction is not such a problem
I live on a hill so I’ve got used to “tacking” up it by zig zagging when there’s snow. Not always successfully though. The journey to part-ex my then 330ci Clubsport for the 911 turned out to be the day of the 2018 Beast From the East and some dozy plonker standing in the road making a fecking snow man(!) made me lose momentum and I came to a halt. Said plonker then tried to make amends by pushing me to get me going again and managed to rip the boot spoiler off in the process. I soooooo wanted to call the well meaning idiot seven kinds of c*nt, but he was the local vicar Then, the guy selling me the 911, not unreasonably decided he didn’t fancy receiving my PX beemer as a series of individual parts so I had to pay cash for it.
Amazingly, I can fit more stuff on the ebike than I can my car so it gets used as a van (having a parts clear out so I needed to do a much overdue eBay/post office run).
Yamaha/Ohlins did release a 2WD bike, there is one local to me, I have seen it but not ridden it, apparently it is a bitch to ride with the extra weight on the front, and if the front breaks traction you lose steering, bit like riding on ice? https://www.mcnews.com.au/yamahas-wr450f-2-trac-two-wheel-drive/