What are the options for carrying the temporary spare wheel, from a Mk2, on a trunk lid carrier, The object is to increase the dry storage inside the trunk. The spare can get wet! Has anyone done this?
Angus
If you’re worried about it get a wheel cover, but wheels tend to get wet when they are on the car and it doesn’t harm them so…
Russell.
How about copying the Mk 3 solution. Bin the spare wheel all together and pack a can of tyre weld. No hideous spare wheel on the boot spoilling the aesthetics, massive reduction in weight and the ability to use the boot rack for luggage space if required.
PS. Fortunately not had to test the tyre weld solution in anger, but it sounds good on the tin
I just use the rear shelf & the MX-5 water proof aluminium suit case for long trips away.
Pic of said case - which cost me nothing incidently as i bought it on Ebay with a boot rack but already had a rack. Relisted the rack & it sold for more than i paid for the case / rack. Even came with the leather straps! …Don`t you just love Fleabay 
I have carried a can of tyre weld in my cars for over 20 years now. I have had to use it on more than one occasion and have found it to be more than good value for money. It is a very simple way of getting moving again. It will fix most small leaks, but MUST NOT BE USED AS A PERMANENT REPAIR. Once mobile again you should seek out a tyre vendor post haste. The advantages of swapping the spare tyre for such a small can cannot be overstated.
Don’t want to put too much of a downer on tyre weld but I once hired a car which had no spare but had a tin of weld. Half way down a hill the front tyre went and part of it was in shreds, must have run over a glass bottle or something, no tin of tyre weld was going to repair that.
Had to call the hire firm who got a local recovery out to me to change the wheel. Had to wait 2 hours for them with a couple of impatient kids in tow.
First thing I did whem I got my 5 was swop the spare for a can of tyre weld. I’ve had to use it once and it got me home from the Loire valley with speeds of up to 70 m.p.h. with no problems at all.
I’m sure that if they had been as good 20 years ago as they are now Mazda would have used them from the start.
They reckon you get a puncture once every 90,000 miles on average. I had none for years, then my last car had 2!
My used Mk3 came without the Mazda repair kit, and they are bloody expensive. I’ve stuck in a can of tyre weld and a Halfords compressor I already had - fits nicely into the space for the Mazda kit.
Anything worse than a small leak and I’ll get the RAC to flat-bed me to Quick-Fit! 
The only problem with that is that if you read the small print on the RAC conditions (I know I must have been very bored when my RAC card turned up!) it states that they will not cover any costs incurred as a result of you failing to carry a serviceable spare tyre and wheel, and then something about if your car does not come with a spare wheel they will still cover you. So all you with Mk3 which did not come with a spare wheel are fine, but if I remove mine from my Mk1, I could be stuck with no one to help.
As people have said, tyreweld is fine for a puncher, but can not manage a major hole. Might call RAC one day and see if the would still cover me, as would give me lots more space in the boot.
■■■■■■! I hadn’t read the small print, but I guess I’m OK as there is no spare. It happened to me once on the (motor) bike and the RAC hauled it round to the dealer at no charge. No spare wheel is something you just have to live with on a bike!