I recently purchased a nearly new Mazda 6 station wagon. I find it does not have a spare wheel, just a can of aerosol in case of a puncture. Enquiring at my Mazda dealership, I was told a full sized spare could be purchased but would cost £600, as it required new fittings for the boot floor. I regularly drive in some of the more remote parts of the UK as well as long motorway journeys. How effective is the aerosol and what happens after a blow-out? I don't fancy waiting for a low loader to arrive. Is there a cheaper alternative, please? (Otherwise the Mazda fulfils all my expectations.)