Introducing the Ferrari SF90 XX: A Track-Tuned Marvel from Maranello
At the esteemed Fiorano circuit, Ferrari pulled back the curtains on their newest member, the SF90 XX Stradale, a special edition behemoth rooted in the SF90 Stradale lineage. The grand reveal also showcased its convertible counterpart, the SF90 XX Spider, equipped with a retractable hardtop. These limited series V8 plug-in hybrid electric vehicles (PHEVs), with only 799 Stradale and 599 Spider units produced, represent a significant milestone in Ferrari's endeavor to unify their Special Series and XX programme.
Progressive Endeavours in Maranello's Heart
Ferrari's idea of crafting special editions has been evolving over the past two decades, with notable achievements including the 488 Pista and 812 Competizione. Running parallel, the XX Programme has been delivering ultra-high-performance cars for expert client drivers, exclusively for track use. The SF90 XX Stradale, the latest progeny from these two initiatives, aims to broaden the horizons of track and extreme driving experiences.
The SF90 XX Stradale takes performance up a notch with 1,030 cv, a 30 cv improvement over the SF90 Stradale, thanks to bespoke software logics and enhanced aerodynamics, including a fixed rear spoiler - a sight unseen on Ferrari road cars since the F50 era. This spoiler delivers an unrivaled downforce of 530 kg at 250 km/h.
The SF90 XX Spider: The Thrill of Open Sky
Pursuing the same objectives, the SF90 XX Spider blends exhilarating track performance with the joy of open-top driving. It shares the sophisticated aerodynamics of its Stradale sibling, and enjoys specially designed cockpit airflows for comfort, even with the top removed. The retractable aluminium hardtop can be operated in a mere 14 seconds and functions at speeds of up to 45 km/h.
ICE and Powertrain: The Beating Heart
Inheriting the distinctive PHEV architecture of the SF90 Stradale and SF90 Spider, the SF90 XX Stradale pairs a V8 internal combustion engine with three electric motors, two on the front axle and one sandwiched between the engine and gearbox at the rear. This arrangement results in an awe-inspiring power output of 1,030 cv.
To further boost performance, the turbocharged V8, located in the mid-rear, contributes a staggering 797 cv. A range of enhancements, such as polished inlet and exhaust ducts, new pistons, specific combustion chamber machining, and the elimination of the secondary air system, result in a significant power and efficiency upgrade over the base SF90 Stradale's engine.
Aural Pleasure: The SF90 XX Stradale's Melody
The SF90 XX Stradale offers a carefully curated auditory journey to reflect its racing spirit. The remodeled hot tube system amplifies the sound quality, celebrating the harmonic richness of the V8's rev range. The intake plenum tube, now placed closer to the cabin, provides more aggressive harmonics, particularly when the engine requires higher air intake to produce the required torque.
Electric Motors and Transmission: Power Source and Channel
Like its SF90 Stradale counterpart, the SF90 XX Stradale features three electric motors delivering a maximum of 233 cv. The rear-located MGUK (Motor Generator Unit, Kinetic) contributes 162 cv, while the two front-axle motors, each contributing 36 cv, are controlled by the RAC-e (electronic cornering setup regulator). This unit optimally distributes torque to the wheels, delivering a significant performance boost through these three electric motors.
Energy Recovery and Vehicle Dynamics
The SF90 XX Stradale's energy recovery and storage system is integral to its hybrid design. The high voltage (HV) battery can store up to 7.9 kWh of energy, translating into 25 kilometers of pure electric drive, further demonstrating its versatility. The high-performance battery also supports rapid charging and discharging during high-intensity track use.
The SF90 XX Stradale hosts advanced vehicle dynamics, such as eSSC (Electronic Side Slip Control), high-performance ABS/EBD (Anti-lock Braking System/Electronic Brakeforce Distribution), and FDE+ (Ferrari Dynamic Enhancer Plus). These features ensure precise control during hard braking and help maintain the vehicle's balance during high-speed maneuvers. Alongside the innovative Assetto Fiorano package, the SF90 XX Stradale allows drivers to choose between softer or harder settings to maximize performance according to road or track requirements.
Design: A Marriage of Aesthetics and Aerodynamics
The SF90 XX Stradale exemplifies Ferrari's unique blend of aesthetic allure and aerodynamic prowess. The exterior features a mix of the iconic Rosso Corsa, with Blu Nart and Bianco Avus accents, crafting a design that is both contemporary and evocative of classic Ferraris. This fusion of exceptional aerodynamics and design lends the vehicle a dynamic presence even when parked.
The cockpit maintains the SF90 Stradale's dual-cockpit concept, which distinctly separates the driver and passenger spaces. The head-up display enriches driver-car interaction, while the haptic touch interfaces modernize the experience.
A Fusion of Power and Performance
The development of the 2024 Ferrari SF90 XX Stradale was directed towards achieving two key attributes: remarkable performance and maximum driving pleasure. This is a significant accomplishment, given the integration of its hybrid powertrain, as seen in the standard SF90 Stradale, into a package designed to be more exciting and engaging. The powertrain's functionality takes center stage, particularly focusing on the electric mode's ability to deliver high performance in urban settings and on long journeys, reaching an impressive top speed of 135 km/h on electric power alone.
The synchronization between the different components of the drivetrain - the electric front axle, the 8-speed DCT gearbox, the rear-mounted electric motor, and the V8 engine - promises seamless switching from electric to hybrid mode. This harmony ensures immediate power availability and consistent acceleration.
Integration of Cutting-Edge Technologies
The SF90 XX Stradale integrates several innovations, like the Ferrari Dynamic Enhancer (2.0) and the ABS EVO controller, both previously debuted in the 296 GTB. These systems aim to improve performance and consistency during high-performance braking in dry conditions. Using data from the 6W-CDS sensor, these systems optimize brake distribution to ensure maximum grip during straight-line and cornering scenarios.
A unique feature introduced in the SF90 XX Stradale is the extra boost control logic. Active in Qualifying mode, this software provides an additional power boost during corner exits, a strategy that, according to Ferrari, can reduce a lap time at Fiorano by 0.25s. This control logic not only ensures optimal performance and power delivery but also monitors the components' status for optimal electric power recharge during each lap.
Interior Design: Luxury Meets Track-Inspired Comfort
The interior of the SF90 XX Stradale is a splendid combination of luxury and track-focused functionality. The seats are redesigned to improve lateral containment during high-speed cornering, enhancing comfort while maintaining the high standards of luxury one expects from a Ferrari. A new upholstery, available in either Alcantara or leather, improves grip and breathability.
The SF90 XX Stradale's interior architecture introduces a novel approach that continues the tradition of driver-centric ergonomics. A significant aspect of this approach is the concept of 'hands on the wheel, eyes on the road.' This concept is carried out through the inclusion of a variety of haptic controls on the steering wheel, allowing the driver to operate virtually every aspect of the car without taking their hands off the wheel. Additionally, the 16" curved HD screen serves as the instrument cluster, displaying all necessary information in high resolution.
Safety and Driving Assistance Systems
The SF90 XX Stradale boasts an extensive array of safety and driving assistance systems. Along with the standard suite of airbags, the SF90 XX Stradale is equipped with a Ferrari-first Advanced Driver Assistance System (ADAS). This system includes features like adaptive cruise control, traffic sign recognition, lane departure warning, and autonomous emergency braking.
The Vehicle Dynamics Control system is a Ferrari standard, ensuring optimal stability and control in various driving situations. This system integrates various subsystems, such as eSSC with FDE+, ABS/EBD, and electronic differential (E-Diff3), to deliver unrivaled driving performance and safety.
Embracing Sustainability
Ferrari has made a significant stride towards sustainability with the SF90 XX Stradale, showcasing their commitment to the environment while also delivering world-class performance. The SF90 XX Stradale's plug-in hybrid electric vehicle (PHEV) powertrain not only reduces CO2 emissions but also provides up to 25 kilometers of pure electric driving. This makes the car exceptionally versatile, capable of exhilarating track performance, smooth long-distance journeys, and silent, emission-free urban driving.
In Conclusion
The 2024 Ferrari SF90 XX Stradale, along with its convertible counterpart, the SF90 XX Spider, are a culmination of Ferrari's years of expertise in hybrid technology and track-focused design. They are more than mere successors to the SF90 Stradale and SF90 Spider; they represent a significant milestone in Ferrari's continuous endeavor to innovate and refine their craft. These cars truly embody the perfect balance of performance, design, and sustainability that will undoubtedly shape the future of the automotive industry.
-Ed
2024 Ferrari SF90 XX
