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Pagani Huayra Roadster: the most incredible convertible ever!

New model can be lighter and more rigid than the roof version

Six years after the release of the coupe version, Pagani Huayra finally wins a convertible body. The long development time is fully justified: in addition to all the exclusivity, the new Huayra Roadster achieves the feat of being lighter and stiffer than the older brother, reversing the logic that usually accompanies this type of variation.

Convertible versions often require more structural reinforcements (and more weight) to balance the loss of torsional rigidity caused by the absence of ceiling. But Pagani was able to make the Huayra Roadster 80 lbs lighter than the original, totaling 1,280 kg – a Mercedes-AMG GT C Roadster weighs 1,595 kg!

This was achieved thanks to the use of two new composite materials, Carbo-Titanium and Carbo-Triax HP52. In addition to the reduction in weight, they still increased torsional stiffness by an astonishing 52% compared to Huayra, say, conventional.

The engine used is custom made by Mercedes-AMG to Pagani. This is the M158, a variant of the 6.0-liter biturbo used in the top-of-the-line AMG models. On the Huayra Roadster, it develops 764 hp at 6,200 rpm and 102 mkgf at 2,400 rpm.

The seven-speed automatic transmission from X-Trac, also developed for the Pagani, and the traction follows exclusively for the rear wheels. To tame so much force, there is a stability and traction control with seven driving settings: Wet, Comfort, Sport, Race and fully off.

The suspension maintains the refinement of Huayra BC, but was 25% lighter thanks to an aluminum alloy called HiFrog, (once again) developed specifically for the Roadster. Along with the exclusive Pirelli PZero Corsa custom-made tires for the Pagani, the result is a lateral acceleration capability in curves of 1.8 G, the same as the Huayra BC.

But the task of keeping it firmly on the ground is not restricted to suspension and tires. Aerodynamics also plays its part. Four flaps, two in front and two behind, work in tandem with the active front suspension to keep the car floor – which is flat – always parallel to the running surface.

And to brake? Brembo’s most advanced brake calipers are in action, with six pistons in the front and four in the rear, triggering huge ceramic-carbon discs. In addition to the braking power, they have managed to reduce the non-suspended mass – the weight that is not supported by the suspension – to further improve the car’s behavior.

The mechanical and technological refinements of the new Huayra Roadster are so comprehensive that we almost forget to talk about the model’s raison d’être: the ceiling – or the lack of it. There are two types of roof: a hard roof made of carbon fiber with a large glazed area, and a fabric and carbon roof that can be stored in the vehicle when not in use.

Of course, engineering and design work has its price: 2,280,000 euros (R $ 7,384,236 in a direct conversion), without fees. The car will be officially presented to the public at the Geneva Motor Show in March. And all 100 units that will be produced have already been sold…


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