An Estate or an Estate car is also known as Station Wagon. Station Wagon is a style of car body which is different from a sedan with it's roof extended backward. A Station Wagon may be define like this that an automobile which will have one or more segments of seats behind the driver seats with having no compartment for baggage or luggage but it has a tailgate from where luggage or baggage's can be placed in the area behind the seats. It can come with two layout one is two door with a tailgate and the other is four door with a liftback or tailgate. A Station Wagon may contain folding or removable seats.
Hatchback is a body style of a car incorporating a shared space of passenger and cargo volume with having a rearmost accessibility via a rear third door or fifth door, typically having a top hinged liftgate and features like as fold down rear seats to enable flexibility and space within the shared passenger or cargo volume. "Having a sloping back in a car with a hinged rear door that opens upward" is the definition as per The American Heritage Dictionary. A Hatchback may be described as a three door car as it having a hatch along with two entry doors or a five door car having four entry doors along with the hatch and it may range in size.
