If you are looking at the first-generation Ligier JS 51, you are looking at Ligier's original Roadster for this model. It is a compact open-top car, and selected versions show how that generation was offered.
The Ligier JS 51 engine in this generation is a 2.0-liter gasoline unit, as in the 2.0 DSG Roadster example. Its powertrain pairs a robotic transmission with rear-wheel drive, so you shift without a clutch pedal and the drivetrain sends everything to the rear wheels.