The Lamborghini Fenomeno Roadster is a new limited edition model, and will be the brand’s fastest ever open-air model.

Like the Fenomeno coupe that was unveiled last year, the roadster is a “few off” model based on the Revuelto featuring unique body work and an upgraded hybrid V12 drivetrain. Production of the roadster will be limited to just 15 units, while last year’s coupe had a slightly larger run of 29 cars.

According to Lamborghini, the roadster has a “similar level of stiffness and rigidity” compared to the coupe thanks to a bit of additional bracing and a few kilograms of extra weight.

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To ensure the roadster has the same level of downforce and engine cooling as the coupe, Lamborghini has tweaked the car’s aero package. There’s a new spoiler at the top of the windscreen that minimises buffeting inside the cabin and feeds air into the V12 engine, and essentially replaces the coupe’s roof scoop.

The company also paid particular attention to the roll over bars, which are shaped to both minimise wind noise and turbulence, and fit in aesthetically with the flowing design of the rear.

Powering the Fenomeno Roadster is an uprated V12 hybrid system featuring a naturally-aspirated 6.5-litre V12 making 614kW and 725Nm. It is paired to two electric motors at the front, and one in the rear-mounted eight-speed automated dual-clutch transmission.