Ohhhhhhh, now that you have considered doing this, you might end up giving yourself a good kicking if things go bad.
A friend at work, bought a new Fiat Punto and told me about it, I asked if it had a spare wheel - and it did not, though he was going to buy one sometime.
A few months later, he was transporting a lot of wedding gifts back from a very remote Northern wedding venue, when he had a puncture, pulled into the side of the motorway and phoned the RAC as he had free cover with the car's warranty - their answer was "use the product supplied" and continue on your journey, now he had looked at the tyre and by the time he had stopped it was split wide open, never the less the RAC insisted that he used the product supplied by Fiat, so he did with the expected results!
Phoned RAC again saying that he had a puncture, used the supplied product and was still stuck with a wrecked flat tyre, RAC responded within a hour or so and eventually transported his car back to his home city, where, by now, the local Fiat dealership was shut as it was very late, so instead of leaving the car there and everything exposed to break-in and theft, he got the RAC to take him home.
All of this phoning, using product, phoning and waiting to be picked up cost them maybe 4 - 6 hours.
So, he was stuck with a dead car, no car tools to jack up and remove the wheel to take on a bus the next day to his local nearest tyre place - next plan was to book a day holiday and phone up a mobile tyre fitter, they came out, raised the car up onto a block, took the wheel away and ordered in a new tyre same as the others, that took 2 or 3 days as that mobile tyre guy had his own sources of new tyres.
So, a day's holiday gone and maybe another when the wheel was returned, a car out of use for 3 or 4 days, an expensive tyre replacement and basically a return journey from a wedding messed up.
Next day he went down to his local Fiat dealer and ordered in a new spare wheel/tyre and all the rest of the bits needed, ie a tool kit which cost a lot more than it would have if he had checked up with a local scrappy!
So, that is just my experience of finding out what can happen to someone that did not have a spare wheel and car tool kit, I hope that I never ever need to end up with a car without a spare wheel and car tool kit.