Here is a list of threads on the topic, via the handy Search Tab...
A few good threads list different spare tire apps for E70.
Otoh, running RFTs or even non-RFTs doesn't necessarily require a spare.
I have discovered 'low' tires in my driveway, (nails, screws, etc.), but haven't
had a flat 'on the road' in decades. I drive our Vette with non-RFTs and never
give it a thought.
But, there are spare 'solutions' in the link.
GL, mD
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