My car came with Pirelli Scorpion Verde Seal Inside tyres fitted as standard, which I've only just realised are all season tyres. The car also came with what I assume is the standard puncture repair kit i.e. can of gunk and a small air pump. My question is; do these tyres self seal as Pirelli claim, and if so, why is there a repair kit in the boot , or should I spend even more money on a space saver spare ????? Anyone have experience of these tyres ??