Fire extinguisher + laminated glass + hammer in XC90

After which some of you reported about fire in the engine compartment, laminated glass in the Volvo and the burn death, I have been looking for a remedy in the last two days. The Originla Volvo fire extinguisher fits nicely under the passenger seat. It is not cheap, with installation and installation kit the best piece costs 160 Euro. A disc hammer with belt knife for 9.95 Euro is significantly cheaper, which fits nicely under it. So no panic, even if I hope the two things never for m I have to use so you can be useful to get someone else out of his car. Robert