sounds like the car is being personified as the singer. the broken-down bits. or it could be about a relationship, but i think it's more about how the car/person feels worn the fuck down and is still hobbling, still transporting, still making the dream come true.

It's about olives. The black ones, not the green ones. Everything is about olives if you want it to be.

It's a song about being very sleepy. Very sleepy.
You can barely keep your eyes open. You're almost to your destination. But the heavy press of your eyelids forces them down over your eyes. And the car is destroyed around you but you have to move on.

So I'd say it's about overcoming obstacles in order to keep moving, even knowing that the journey will destroy you.

It is obviously about drugs, the internet, and rhyming.

It's about going to Slumber Land and buying a new mattress.

"a little change, will do you good"

:)