DB9 Space saver wheel

[brakedwell]

I was surprised to see a space-saver spare wheel listed in an advertisement for a 2008 DB coupe. I can't see it fitting in the boot, so where else can it go? Answers on a postcard please.

[Jockman]

You 'avin a laff, John James

[brakedwell]

Jockman said:

You 'avin a laff, John James

Nope

[AmbersOnOak]

I did a search for "space saver" for Aston Martins and this appeared to be the only post.
I was surprised the topic hadn't come up again in the well over 10 years since.
Surely this is a common issue with uni-directional tyres, different widths front and back, and only an emergency tyre inflation kit.
Is anyone using, or looked into, space savers?
Are there better alternatives out there? (other than Roadside Assist)
I have a 2011 DB9 with Bridgestone RE050 235/40 ZR 19 and 275/35 ZR 19.

[Simpo Two]

Mine is away so I can't measure up, but you may need a roof rack too...