Warning: Cars are still unstable! I was washing my car the other day and noticed that it still had four 'wheels' on it. I had already removed the spare 'wheel' from the trunk in order to get a lighter car that got better gas milage. As it turns out, these 'wheels' are actually part of something called the 'drive train' and are what actually make your car move!
Don't delete your wheels!!
And They Said the Mac Was Intuitive