Space saving wheel

[TIMCRIPPS]

I have a MK 3 Jazz (2020) and only have the Honda Contimobilitykit for repairing and inflating small punctures.
I would like an actual spare wheel but I think the boot space only allows room for a space saver wheel.
Has anybody with a mk3 Jazz had the same issue and can advise on best course of action. Do I also need a spacer for example?