Auto fire extinguisher!!!?

well i just came up on a obx racing sports flamebeater auto fire extinguisher and i need to know if i could put it on my side pannel in my car i just dont want it to explode or something with the heat the fire extinguisher contains DRY POWDER PRESSURIZED WITH NITROGEN TO 7 BAR AT 20 DEG.C it says that operation temperature range -20 deg. C to +50 Deg. C i live in california and the weather gets really hot sometimes max heat that we get is like around 100* just want to make sure its not going to pop or explode or something cause the sun will hit it were i want to put it!!