Sedans are 2 to 4 door automobile seating four or more people and usually having a permanent top,
Except for the first few cars.

Sedans

Most sedans are v4, or v6. V are how many cylinders there are which powers the vehicle.

1885-built Benz Patent-Motorwagen, the first car to go into production with an internal combustion engine

Fun Fact: the most popular Present Day Sedan is the 2014 Honda Accord, the second most popular Present Day Sedan is the 2014 Nissan Altima.

Honda Accord

Nissan Altima

V4-V6

V4-V6

A combustion engine is an engine which generates mechanical power by combustion of a fuel.

The first car.

A Coupe is just the same as a Sedan but, a Coupe has 2 doors and 2-4 seats.