In the Salturn L-200 I've got a hoodie, a fire extinguisher, a first aid kit, at least one umbrella, jumper cables, spare and jack, a couple bottles of water, a pair of flip flops, a beach towel, a bag of grocery bags that I need to put in the recycle bin, and who knows what else. In the glove box is a solar blanket, pad and pens, wet naps, napkins.
In the Prius is an umbrella, a blanket, a camp chair, and DH's turnout gear and EMT supply bag, plus a fire extinguisher, first aid kit, jack and spare, and jumper cables. I'm not sure what else he's got in there.
In the SKY, cargo space?

I've got a mini-umbrella, and a fire extinguisher in the trunk, as well as some sort of device that will inflate a flat temporarily. There is no spare. There is no room for a spare. There isn't room for much more than I already stated. Behind the drivers seat is a hand towel and a sweater or hoodie, a bottle of water, and that's about it. The sub-woofer is behind the passenger seat, so no room there.
Anne