Amen brother. I too get confused with things being different sizes. Look at phones - why aren't they all the same size? Laptops. Even desktops come in different sizes. Not only are they different sizes with in a group, but each group contains things that are wildly different in size to other groups. Why isn't everything the same size?! I appreciate it would introduce some ergonomic difficulties if cars and mobile phones were the same size, but at least it would put an end to all the confusion.