Honestly, on my way home last year, I pulled into a service station for a toilet break.
Car park was covered in snow and I had a hard time getting out.
Thank god for some friendly lorry drivers that offered to sit in my open rear hatch so I had traction.
I also had my boot filled with bags and stuff, so in real terms, the Zed doesn't have enough weight over the rear axle when it's faced with snow sadly.