I have the can of fix a flat option, with an air compressor. I asked my service guy about ordering a spare... After he asked me if I was sitting down, he said it would be $1200. The battery is in the area of where the spare goes. With the spare tire option, you need a different shaped piece of Styrofoam, to lower the battery, which sits under it. The spare is a foldable unit, that still needs an air compressor to inflate it. I have not seen it, but would love to see how this works, but for $1200, I'll call road side assistance instead. If anyone has seen this, please post a picture.