If you have a dream about a dog car this means that you are thinking about all of the ridiculous things that have taken place in your life recently and the effect that they've had on you. You are considering all of the oddities you've had to deal with and all of the incongruence in your life. A dream like this does not come often but it is one that holds immense meaning. Try to translate it later when you have a bit more time to yourself. There are a lot of possible meanings but only you can gather them this time.