기존 시론의 8리터 16기통 쿼드터보 엔진을 그대로 얹었고, 1500마력, 163kgm의 힘도 그대로다. 시론 뒤에 ‘스포트’를 붙인 명분은 더 단단한 서스펜션과 가벼워진 몸무게에서 찾을 수 있다.
다이내믹 핸들링 패키지에는 일반 시론에 비해 10% 더 단단해진 서스펜션이 적용됐다. 더불어 스티어링 기어비를 보다 민첩하게 손봤다. 이런 변화는 ‘핸들링 모드’에서만 적용되기 때문에 평상시 ‘EB 모드’와 차이가 확연하다.
후륜 디퍼런셜도 손봐 ‘다이내믹 토크 백터링(Dynamic Torque Vectoring)’ 기능을 추가했다. 각 바퀴에 전해지는 토크를 따로 조절할 수 있어, 코너링 성능이 비약적으로 높아졌다.
시론 스포트는 일반 시론에 비해 몸무게가 18kg 줄었다. 일반 시론도 차 크기와 거대한 엔진을 감안했을 때 꽤 가벼운 1,996kg을 자랑했는데, 거기서 더 살을 뺐다. 가장 많은 무게를 줄인 부분은 ‘코스(Course)’ 경량 휠이다. 스태빌라이저와 인터쿨러 덮개, 와이퍼 암 역시 카본으로 만들어 다이어트했다.
카본 와이퍼 암은 양산차 중 최초 적용이다. 베이론의 와이퍼와 비교하면 77%가 가벼워져 1.4kg을 줄였다. 부가티는 와이퍼도 최고구나! 사다리꼴 모양의 기존 배기구도 4개의 원형으로 변경해 무게를 덜었다.
다이내믹 핸들링 패키지와 경량화 덕분에 시론 스포트의 나로도 서킷 랩타임을 일반 시론에 비해 5초 앞당겼다고 한다. 같은 차를 가지고, 더구나 이런 하이퍼카급에서 랩타임 5초 단축은 결코 쉬운 일이 아니다.
시론은 두 가지 색깔로 차체를 칠할 수 있다. 제네바모터쇼 무대에 오른 시론 스포트는 앞부분(B-컬러)을 ‘이탈리안 레드(Italian Red)’로, 뒷부분(A-컬러)을 ‘건 파우더(Gun Powder)’로 꾸몄다. 카본 패턴이 그대로 드러난 검은색과 붉은색의 대조가 강렬하다.
B-컬러에 쓰인 이탈리안 레드는 시론의 상징인 옆면 C모양 선과 브레이크 캘리퍼, 휠 중앙 허브캡, 리어스포일러 아랫면, 인터쿨러 덮개에도 똑같이 적용된다. 이탈리안 레드 외에도 ‘프렌치 레이싱 블루(French Racing Blue)’와 은색 ‘그리 라팔(Gris Rafle)’, ‘건 파우더(Gun Powder)’도 고를 수 있다.
실내는 일반 시론이 크롬으로 장식했던 부분을 검은색으로 처리했다. 알칸타라로 감싼 운전대와 천장도 시론 스포트만의 특징. 검정 가죽은 붉은색 실로 박음질해, 밖에서 보았던 빨강과 검정의 대조가 실내에도 이어진다.
시론 스포트의 가격은 미국시장 기준으로 약 35억 원에 달한다. 일반 시론이 약 32억이었으니, 3억 원 정도가 더 비싸다.
Bugatti has honed the Chiron and is offering a Sport version of its 1,500 PS super sports car two years after its world debut at the 2016 Geneva International Motor Show. At the same venue this year, the French luxury brand is presenting the Bugatti Chiron Sport which offers significantly improved handling and even greater agility with no change in the power or performance data. For this purpose, Bugatti has developed a dynamic handling package and reduced the weight of its car by about 18 kilograms. As a result, the Chiron Sport reaches higher cornering speeds and can lap the Nardò handling circuit in the south of Italy five seconds faster than the Chiron. The main differences between the appearance of the Chiron Sport and the standard version are a new wheel design and new four-pipe exhaust deflector. The basic price of the Bugatti Chiron Sport is €2.65 million net. A base price of US$3.26 million including transport, customs duties, taxes and fees has been set for the US market. In addition, there is an optional colour and trim package allowing customers to individually tailor the sporty appearance of their Chiron Sport. It is planned to deliver the first vehicles to customers at the end of 2018.
"We have developed the Chiron Sport for customers wanting an even sportier driving experience with their Chiron, with improved lateral dynamics on winding roads," says Stephan Winkelmann, President of Bugatti Automobiles S.A.S. "What was important for us was to leave unchanged the unique character of the Chiron, its combination of ultimate performance, longitudinal acceleration and maximum speed with luxury, comfort and everyday usability."
This is why the extreme power and performance data of the Chiron as well as the ease and convenience of driving remain unchanged. There is however a significant improvement in the handling of the Chiron Sport.
"The Chiron Sport has become perceptibly more nimble and its new agility, especially in tight corners makes for a much more emotional experience for the driver on winding roads and handling circuits," Winkelmann continues.
Dynamic handling package and lighter weight make Chiron Sport faster
The Bugatti Chiron Sport benefits from a new dynamic handling package. The Bugatti developers have defined a stiffer suspension. This includes a new control strategy for the shock absorbers, which react 10 percent more stiffly than on the Chiron on average. The steering has also been modified without sacrificing its outstanding direct feel and its calculable performance. These new settings only take effect in the Handling mode of the Chiron Sport, which is therefore distinguished from the EB mode more clearly for the driver.
In addition to these changes, the rear-axle differential has been optimised and the car now features a Dynamic Torque Vectoring function that distributes torque individually to the wheels on each side, significantly improving the steering behaviour and agility of the vehicle, especially in tight curves. This change is effective in all driving modes.
One of the modifications which make the Bugatti Chiron Sport more nimble is a weight reduction of about 18 kilograms, thanks to the use of new lightweight parts. The greatest savings were possible as a result of the new lightweight wheels, together with increased use of carbon fibre, for example for the stabiliser, the intercooler cover or the newly developed windscreen wipers. The Chiron Sport also features lighter glass in the rear window and a new, lighter exhaust deflector.
As a result, the Chiron Sport has become even more responsive and corners even faster. On the handling course of the Nardò test circuit, Bugatti developers recorded a lap time which is five seconds faster than the base Chiron model. Due to its design the Nardò circuit is especially well-suited as a reference track for the Chiron, as the super sports car can reach its full handling potential even at cornering speeds in excess of 200 km/h.
Bugatti is the first manufacturer to develop a carbon fibre windscreen wiper
The windscreen wiper arms developed by Bugatti for the Bugatti Chiron Sport are an interesting technical detail. This is the first production car to feature windscreen wiper arms made from carbon fibre. This new development means that Bugatti no longer needs the articulated joints which normally feature on conventional wipers. The function of these joints has been integrated into the carbon fibre structure of the wiper arms. In addition, the wiper arm tips, which are made from aluminium, are produced by a weight-saving 3-D printing process. This means that the new carbon fibre wipers are 77 percent or 1.4 kg lighter than their predecessors.
In addition, thanks to the new material, the wiper arms have a new profile that allows improved aerodynamic properties.
New wheel rims and exhaust deflector distinguish Chiron Sport from Chiron
At first glance, the Bugatti Chiron Sport can be recognised by its new "Course" alloy wheel rims and the new exhaust deflector, which has four round tailpipes instead of the rectangular design used on the Chiron. In addition, the Sport version has a number of design features that underline its identity as a Chiron Sport. For example, the engine starter button and the driving mode selector knob on the steering wheel as well as the marketing plate have an anodised black finish, the "Sport" logo is in evidence on the door sill strips and there is an insert on the central console with an embroidered "Chiron Sport" logo.
More colour and trim options available for an even sportier look
In addition, Bugatti's design team has created a package of colour and trim options for the Bugatti Chiron Sport allowing customers to give their vehicles the sportiest look possible. The Chiron Sport on show in Geneva features all the options available.
The vehicle body has a classic duo-tone colour scheme. The A-colour at the rear of the vehicle is determined by visible grey carbon; Italian Red paintwork at the front represents the B-colour. Apart from red, the colours available are "French Racing Blue", the silver tone "Gris Rafale" and a dark grey "Gun Powder".
The distinctive Bugatti side line, a C-shaped trim strip made from aluminium alloy, is painted in the B-colour, in this case "Italian Red". This red tone is also to be found on the brake calipers, the EB logo on the hubcaps, the underside of the rear spoiler and in the labelling on the intercooler cover. Here, it creates an exciting contrast with the "Gun Powder" grey of the carbon fibre intercooler cover and the same tone which is used for paintwork on the wheel rims, the aluminium bezel of the Chiron's iconic rear lights, the EB logo on the rear and the famous Bugatti horseshoe on the radiator grille.
A red "16" is positioned prominently on the black-painted grid of the radiator grille - referring to the number of cylinders which gives the Chiron engine its unique position.
Black is the dominant colour of the interior. All the controls of the car have a black anodised finish. The steering wheel and selector lever are covered with suede leather. In addition, Bugatti has used three materials for the styling of the interior: Alcantara for the roof liner including the A-pillar and sun blinds, the rear wall trim, the sill trims, the lower part of the central console, the insides of the seat side cushions and the boot lining. Smooth leather is used for the seats, the inside door trims, the islands on the dashboard including the instrument cluster trim, the airbag container on the steering wheel and the armrest and insert of the central console. Finally, the dashboard itself, the door trims, the rears of the backrests and the steering column housing are made from exposed carbon fibre.
The B-colour of the exterior, "Italian Red" on the Geneva show car, is used to create restrained but distinctive accents in the interior, for example on the stitching, the safety belt, the surround of the C-shaped light bar in the centre of the vehicle, the back of the rear-view mirror and the lining of the central console stowage compartment.
