Ha-Ha! Looks great and yes, even a small "donut" tire is much better than no tire at all. I had no idea Mazda would charge so much for one and it seems you did a good job fitting the kit.
Glad you're a good handy-man, but a terrible speller.....there is no "y" in tire.....

 

There is no "y" in tire.....

There is in the country who's language you use.... 😂

 

Well done ! I did a similar thing but left out the old polystyrene block. Mine had a cargo system top floor which went in with no trouble. My spare is a 135/90/16 as my originals are 16".

 

samo on girlfriends new oil burning 18 malibu bought new, BUYER BEWARE!!

 

I'm interested in getting one for my car with fitted 18" wheels.
Couple of questions
Did you get the 17" version?
What's the diameter of the space saver? To compare it to my original which is about 27"
How did you cut the plastic surround? Mine has the Bose amp fitted and will need to cut quite a bit out.
Thanks in advance.

 

I did this. Full size tire and wheel 235/55R18. Not dealing with a save a spare anymore. I can live with the 2” additional height it added to the mat.

 

I might do the same, I'll have a measure. 2" height loss shouldn't be a concern.

 

Looks like you need an 18" rim to accommodate the Bose sub. The tyre size depends on your preference - chances are you will never need to use it ! A space saver will allow you to keep the shelf height where it was. With the standard tyre with 2 inch extra height the edges of the shelf will sag or need raised support.j

 

Too much debris on I-75 not to have a full size spare. Plus the big brake kit on my 30 wouldn’t clear a save a spare. For me it’s just insurance against being stuck on the side of the road and running that stupid save a spare!