of €2.1M. Later, Pagani unveiled the Huayra Roadster BC and produced 40 units. Huayra Roadster After 2 years of development, the Huayra Roadster was officially unveiled in the 2017 Geneva Motor Show. The design of the car underwent several changes, with the most noticeable being the rear, with updated eyelid-like fixed flaps that continued with the design and eventually ended on the rear lights. Vents were included on the rear engine cover for efficient cooling of the engine, and the wheels were updated specifically for the car along with Pirelli P-Zero tires, along with the addition of a spoiler at the front. The car has conventional doors instead of the Gull-wing doors used in the coupé as such doors cannot be fitted to an open top car. The car has the same twin-turbo V12 engine as the coupé but with the power upgraded to at 6,200 rpm and of torque at 2,400 rpm. The power is delivered to the rear wheels via a Xtrac 7-speed sequential manual transmission which is 40% lighter than its coupé counterpart. The car was constructed by a material developed by Pagani called 'carbon triax', which is a combination of tri-axis fibre glass with carbon fibre. This allowed the car to weigh less than its coupé counterpart, for a total of , making it the first roadster lighter than the coupé. Only 100 were made, all of which were sold even before production ended. Pagani said that the car could accelerate at 1.8 G. Bespoke editions Continuing its tradition with the Zonda, Pagani produced several bespoke Huayras. Huayra Carbon Edition (bare carbon exterior) Huayra White Edition (Snow white exterior with carbon fibre bits) Huayra La Monza Lisa (bare carbon exterior with tri-colore pinstriping, inspired by the Zonda R) – commissioned by Kris Singh Huayra 730 S "Da Vinci" (tinted blue carbon exterior with gold accents and wheels, inspired by the Zonda tri-colore) – originally commissioned by Alejandro Salomon Huayra BC Kingtasma (tinted red carbon exterior with tri-colore pinstriping and gold crowns beneath the two rear flaps featuring a roof scoop) Huayra Pearl (tinted blue carbon exterior with a split rear wing inspired by the Zonda C12 and a roof scoop inspired by the Zonda Cinque) Huayra Dinastia (three special edition bespoke cars produced for the Chinese market inspired by Chinese traditions) Huayra II Ultimo (final Pagani Huayra coupé featuring the optional pacchetto tempesta aero package along