A coupe works through the same basic systems as other passenger cars: a powertrain drives the wheels, steering directs them, suspension manages their movement, and brakes reduce speed. What distinguishes a traditional coupe is chiefly its body arrangement, usually two side doors and a relatively low roof profile. That arrangement influences access and packaging without prescribing a particular engine or drivetrain.
The complete experience comes from those systems working inside a specific body. A coupe can be front-, rear-, or all-wheel drive, and electric propulsion is compatible with a coupe shape. Understanding the body and the mechanical systems separately makes it easier to explain why two coupes can feel very different.