Automotive

Published on November 19th, 2020 | by Joshua Chin

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Lamborghini Huracan STO Is A Road Legal V10 RWD Racer

Forget the Performante, this new STO is now the maddest, baddest Lamborghini Huracan out there. 

Lamborghini has recently revealed their maddest, baddest Huracan yet in the form of this new Lamborghini Huracan STO. Short for Super Trofeo Omologata, this V10 rear wheel drive only track-car for the road is now what sits above the already mad and bad Huracan Performante. 

Supposedly inspired by the Huracan Super Trofeo EVO that raced in Lamborghini’s Squadra Corse one-make race series and the Huracan GT3 EVO that has claimed multiple race titles, in both the 24 hours of Daytona and 12 hours of Sebring endurance races; the new Huracan STO retains the same naturally aspirated mid-engined 5.2 litre V10 as the Performante, thereby outputting the same 640 hp and 565 Nm of torque. 

What distinguishes this now top-tier Huracan though is the 43 kg of weight shed from the car. Mainly due to the removal of the heft four wheel drive system, but in part also thanks to the liberal use of carbon fibre on 75% of its exterior panels and a 20% lighter windscreen, as well as magnesium alloy wheels shod in bespoke Bridgestone Potenza track-spec tires. 

Speaking of those carbon fibre exterior panels, the Huracan STO also provided Lamborghini with the perfect opportunity to go completely bonkers with the aero add-ons. The highlight of which is probably the new Confango. A one-piece front body panel that comprises of the bonnet, bumper and fenders, this Confango features a front splitter on the bottom, aggressive louvres on the trailing edges as well as two giant nostrils right slab in the middle. 

Not to be outdone by the front end, many holes and louvres also further down the STO in the form of the front brake cooling ducts, NACA air intakes on the fear haunches and the shark fin and air scoop on the rear bonnet. All of which is capped off by the giant manually adjustable rear wing. 

All this weight shedding and aerodynamic wizardry therefore amounts to stellar straight line performance. 0-100 km/h dealt with in just 3.0 seconds, and perhaps more impressively a 0-200 km/h time of just 9.0 seconds. Top speed meanwhile is capped at 310 km/h. 

Being essentially a track car with number plates though, while all-out straight line speed is indeed impressive, more amazing feats of engineering lie when the Lambo takes to the turns. While the aerodynamic add-ons have added 53% more downforce over the Performante, the STO also features a widened track, revised rear wheel steering, stiffer suspension bushing, specific anti-roll bars, and Lamborghini’s MagneRide 2.0 damping system to further improve its high-speed handling prowess. 

On top of that, while power and torque figures remain the same, Lamborghini claims to have given the engine and gearbox a further fettle for greater responsiveness and sporty feel. Three new ANIMA modes have been added too for the STO: STO, Trofeo and Pioggia, that takes advantage of all these performance enhancements. Its brakes have also been given an upgrade, now featuring Brembo CCM-R brakes that is optimised for track use. 

Priced at £216,677 (RM 1.2 million) before taxes, Lamborghini aims for deliveries of these Huracan STOs to begin in the spring of next year. So, to the rich folk of the world who just placed an order for an Mercedes-AMG GT Black Series after seeing it break the ‘Ring record yesterday, hope you kept the receipt because there might be a new Nurburgring lap record holder on the horizon in this mad, bad STO. 

PRESS RELEASE: Automobili Lamborghini presents the Lamborghini Huracán STO – Super Trofeo Omologata: a road-homologated super sports car inspired by the racing heritage of Lamborghini Squadra Corse’s one-make race series with Huracán Super Trofeo EVO, as well as its three-time 24 Hours of Daytona-winning and two-time 12 Hours of Sebring-winning Huracán GT3 EVO.

With its V10 naturally aspirated 640 hp (470 kW) power plant producing 565 Nm at 6,500 rpm, the rear-wheel drive Huracán STO delivers exhilarating acceleration of 0-100 km/h in 3.0 seconds, 0-200 km/h in 9.0 seconds and a top speed of 310 km/h. However, its heart beats with the exhilaration and emotion of a racecar. Superior aerodynamic efficiency, extensive use of lightweight materials, unfettered steering and first-class braking performance, ensure the Huracán STO delivers the emotion of a track experience on every road drive.

“The Huracán STO is the purest incarnation of Lamborghini Squadra Corse heritage, directly transferring technologies from the Huracán Super Trofeo EVO and drawing on the Huracán GT3 EVO’s unique accomplishment of winning three consecutive times in the Daytona 24 hours,” said Automobili Lamborghini Chairman and CEO, Stefano Domenicali. Maurizio Reggiani, Chief Technical Officer added: “The Huracán STO delivers all the excitement of a beautifully balanced, lightweight and aerodynamically superior super sports car, mirroring the driving feeling and exhilaration of Super Trofeo, and perfectly set up for the world’s most demanding tracks but created for the road. The extensive technical solutions and intelligence gained from both our Super Trofeo and GT3 programs has been refined and embodied in the Huracán STO, allowing the pilot to experience the emotions of a racing driver, daily, in a road-legal Lamborghini super sports car able to take lap records.”

Aerodynamic and lightweight superiority in super sports car design

The Huracán STO sports an entirely new exterior design, revising its inimitable Lamborghini profile to optimize airflow. Mitja Borkert, Head of Design, says: “Racing cars are always a strong inspiration for our design. The Huracán STO exquisitely reflects the technology transfer from our successful Huracán race cars, displayed in every aesthetic detail.”

Every aspect of the Huracán STO draws on the aerodynamic efficiency and lightweight technologies demanded in motorsports. The Huracán STO embodies the principle that Lamborghini design always follows function: even more valid for a street-homologated car inspired by a racecar. The Huracán STO is the result of the collaboration between Lamborghini’s R&D, Squadra Corse and Centro Stile departments, with every line and every feature aesthetically outstanding while optimized to ensure the best driving performance.

The comprehensive aerodynamic solutions inspired by Squadra Corse racecars maximize aerodynamic performance, the most important are:

Cofango with air ducts, front splitter and louvers

The front bonnet, fenders and the front bumper are comprised of one single component: the ‘cofango’ created by Lamborghini engineers combines the ‘cofano’ (hood) and ‘parafango’ (fender) including the front bumper, inspired by the Lamborghini Miura and more recent Sesto Elemento. It is not only lightweight, but also a timesaving access feature in motorsports.

New air ducts on the front bonnet increase the airflow through the central radiator to improve engine cooling as well as helping generate downforce. The cofango also incorporates a new front splitter, directing airflow to the newly designed underbody of the car and to the rear diffuser.

The cofango is shaped to push the airflow on top of the front fenders, which incorporate louvers to maximize airflow exiting from the wheelhouse, reducing pressure inside and increasing the front downforce. The side profile of the cofango directs airflow around the front wheels, reducing drag.

Rear fender with NACA air intake

A new rear fender derived from the Super Trofeo EVO achieves both reduction of the front area of the car and consequently the drag, while increasing rear downforce and the car’s overall aerodynamic efficiency. A NACA air intake integrated into the STO’s rear fender serves as an engine air intake, with the shortened duct allowing a 30% decrease in static pressure losses.

 

Rear engine bonnet with air scoop

The revised rear hood design features an integrated air scoop to improve air-cooling at the rear underhood. Dedicated air deflectors, integrated in the rear bonnet’s frame, manage the significant incoming airflow from the snorkel according to the temperature regulation needs of the engine and exhaust outlet.

Shark fin

An integrated ‘shark fin’ on the rear bonnet improves the dynamic abilities of the STO, particularly when cornering: in such conditions the incoming airflow has a yaw angle, and the different pressure levels generated by the two sides of the fin create a positive effect on yaw stability. The fin also helps straighten airflow onto the wing, increasing wing efficiency during cornering.

Adjustable rear wing

A manual, easily adjusted aero set-up of the new rear wing optimizes aerodynamic balance and drag resistance according to track characteristics. A single slotted wing with double airfoil allows the front part of the airfoil to rotate into three positions to enhance rear downforce. By reducing the gap between the front and rear airfoil, compression is increased on the upper side, upping the suction intensity and extension on the bottom of the front airfoil. The aero balance of the car can thus fluctuate by 13%, adapting the STO to different driving styles and conditions.

Brake cooling for the highest performance

New front brake cooling ducts are dedicated to cooling the discs and calipers of the new CCM-R brakes, working in conjunction with the cofango air-louvers that dispel hot air from the front wheelhouses. Additional air intakes including on the underbody, and optimized nolders, are located at the rear.

Aerodynamic result

The Huracán STO achieves the highest level of downforce in its class with the best aero balance for a rear-wheel drive car, with delivery of a superior aerodynamic load a key factor in its enhanced cornering performance. Overall airflow efficiency is improved by 37% and a significant downforce increase of 53% is reached over the Huracán Performante.

Lightweight approach

The Huracán STO uses carbon fiber in more than 75% of its exterior panels, benefiting from complex structures produced as a single component for increased integrity while also reducing weight via less fixing points.

Using its expertise in lightweight technologies, for the rear fender Lamborghini’s R&D department has adopted a carbon fiber ‘sandwich’ technique utilized in the aerospace industry. Thanks to this technology, the Huracán STO uses 25% less carbon fiber material while maintaining the same structural rigidity. At a dry weight of 1,339 kg, the Huracán STO’s weight is reduced by 43 kg compared to the already lightweight Huracán Performante.

The Huracán STO incorporates a windscreen 20% lighter than the Huracán Performante, and features magnesium rims for the highest strength-to-weight ratio, saving further weight over aluminum alloys with the same load factor.

The magnesium rims are fitted with bespoke Bridgestone Potenza tires, available in two versions: one road-focused, the other more track oriented.

The Huracán STO – Lamborghini Squadra Corse at its heart

From the moment, the engine is fired up, every aspect of the Huracán STO, inside and out, stirs the soul of a racing driver. The Huracán STO has at its heart the V10 aspirated engine of the Huracán EVO and Super Trofeo, outputting 640 hp (570 kW) and 565 Nm of torque at 6,500 rpm.  

With an increased wheel track, stiffer suspension bushing, specific anti-roll bars and Lamborghini’s MagneRide 2.0, the STO delivers all the emotion of a racecar while providing a comfortable road experience. The engine has been calibrated for a very sporty and responsive racing feel, with a direct pedal-to-throttle feeling and improved engine sound sharpness at high revs. The gearchange speed has been further increased to provide a highly responsive and rapid gearshift.

Lamborghini rear-wheel steering, and a more direct and fixed steering ratio, has been designed for a race environment and a more intimate relationship between driver, car and track: the driver is fully in touch with the asphalt with feedback on the car’s behavior at his fingertips. Every aspect of the STO’s racing heritage and technology enhances its ability to corner faster, maximizing grip on exit: the Huracán STO is confirmation that races are won in corners rather than on straights.

Three new ANIMA driving modes

Three new driving modes exemplify the Huracán STO’s racing spirit, focused on high performance driving environments: STO, Trofeo and Pioggia. The default STO mode is for road driving and fun on curving roads. Every aspect of the Lamborghini Veicolo Dinamica Integrata (LDVI) vehicle dynamics system is optimized for all road conditions and coupled with a road-oriented suspension setting. The fully active ESC can be switched off for maximum driving fun while still supporting the driver.

In Trofeo mode, all systems are optimized for dry asphalt and the fastest lap times on track. The LDVI assures maximum performance through dedicated torque vectoring and performance traction control strategies for both straight sprints, in ESC ON mode, as well for lap timing, in ESC OFF. The new Brake Temperature Monitoring (BTM) estimation algorithm allows the driver to constantly check the braking system’s temperature, and to manage wear of the system during its life cycle.

Pioggia (rain) mode optimizes traction control, torque vectoring, rear-wheel steering and the ABS on wet asphalt. Traction control and the braking system are calibrated to minimize loss of grip and engine torque cut, with the LDVI system employing precise estimation to deliver only the torque needed in wet situations. The torque vectoring reflects the low adhesion conditions and ensures better cornering, while the suspension is calibrated to maximize grip and improve load transfer.

The new CCM-R braking system

The motorsports DNA of the Huracán STO is as evident in its braking system. With Brembo CCM-R brakes drawing on materials expertise from F1 applications to deliver superior durability, the CCM-R discs provide four times higher thermal conductivity than traditional CCB. Stress resistance is 60% higher, with maximum brake power improved by 25% and longitudinal deceleration by 7%. This results in robust braking consistency in all driving conditions: braking feels sporty, can be perfectly modulated, and thus is optimized for track use.

The Huracán STO interior – designed for purpose

The interior of the Huracán STO reflects the lightweight persona of the exterior: extensive use of carbon fiber features throughout the cockpit, including sport seats in full carbon fiber; an Alcantara interior with Lamborghini’s Carbonskin; carpets removed and replaced by floor mats in carbon fiber; and the fully carbon fiber lightweight door panels with a door latch as opener. A rear arch with four-point seatbelts and a newly designed front trunk for helmet storage, underline the Huracán STO’s racing DNA. The rear arch, developed in cooperation with our Technical Partner Akrapovič, is made from high-grade titanium alloys. It is 40% lighter than conventional stainless-steel rear arches.

New Human Machine Interface (HMI) graphics feature on the Huracán’s touch screen, which manages the car’s functions including drive mode indicator, the LDVI system, tire pressures and brake temperatures. A fully connected telemetry system allows pilots driving their Huracán STO on racetracks to monitor and record their performance and to analyze the data via the Lamborghini UNICA app.

Owners of the Huracán STO can fully personalize both the exterior and interior of their race car-on-the-road via a rich Ad Personam personalization program, with limitless paint and trim combinations as well as race-style vinyls. The concept of a personalized livery is inherent in the design of the Huracán STO, just as Huracán Super Trofeo race cars line up in their unique colors and designs on the starting grid. The launch livery of Blu Laufey and Arancio California exemplifies the Huracán STO’s young and sporty racing spirit.

Price and market delivery of the Lamborghini Huracán STO

The first customers will take delivery of the new Lamborghini Huracán STO in spring 2021. 

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About the Author

Automotive journalist. Professional work on dsf.my and automacha.com. Personal writing found at driveeveryday.me. Instagram: @driveeveryday



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