My original post in 2011 [ New Boots and Panties; Space Saver Wheel & Tyre ] included a listing of all the Vredestien 'Space Masters' I could find at the time -

165/80-15 89P Mercedes-Benz C-class sportcoupé
165/80-15 89P Mercedes-Benz SLK
195/80-17 106P Porsche Cayenne, VW Touareg
185/75-17 98P Mercedes-Benz GLK
195/75-18 106P Porsche Cayenne, VW Touareg, Audi Q5,Audi Q7, Mercedes-Benz R-class
165/70-16 92P Mercedes-Benz C-class sportcoupé, Porsche 911 Carrera 4(S), Porsche 911 Turbo
145/70-17 92P Mercedes-Benz SLK, Mercedes-Benz SLK AMG
185/65-19 104P Mercedes-Benz M-class AMG, Mercedes-Benz R-class AMG
195/65-19 106P Porsche Cayenne
145/60-20 95P Ferrari 599 GTB Fiurano
185/60-17 93P Porsche 911 Turbo, Porsche Cayman S, Maserati Quattroporte, Mercedes-Benz SL
205/60-17 99P Audi A6 Allroad
175/55-18 95P Mercedes-Benz SL Biturbo, Mercedes-Benz E55 AMG, Mercedes-Benz CLS 55 AMG, Maserati Quattroporte
175/55-19 95P Audi A4 Allroad
175/50-19 97P Mercedes-Benz SL 55 AMG

As shown by Britlude the tyre from the SLK interchanged with that fitted to the NA1 without the need to re-drill a spare wheel.

Whether the 165/70-16 fitted to Mercedes-Benz C-class sportcoupé, Porsche 911 Carrera 4(S), Porsche 911 Turbo will interchange with the NA2, I do not know but may be worth a punt to find out.
What will NOT fit in the nose of the car is a 'Space Master' collapsible 185/60-17 [and up] wheel and tyre combo', I've tried and the bonnet will not close.