Home Auto News Ferrari ups performance of SF90 with street-legal XX version

Ferrari ups performance of SF90 with street-legal XX version

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Performance

Ferrari has introduced even more high-performance variants of its already extreme SF90 Stradale and SF90 Spider supercars.

These new models bear the XX designation, typically reserved for experimental vehicles offered exclusively to loyal Ferrari customers. The experimental cars are primarily designed for track use, serving as rolling laboratories for future model development, with valuable feedback provided by their owners.

However, Ferrari has taken a unique approach with the SF90 XX Stradale and SF90 XX Spider by incorporating the extreme characteristics of the traditional XX cars into street-legal models. Limited to 799 units for the coupe and 599 units for the convertible, both variants have already sold out.

Distinguishing features of the SF90 XX versions include redesigned front fascias, vented fenders, distinctive light-strip taillights, and fixed rear wings. Notably, the fixed rear wing is the first of its kind on a Ferrari road car since the F50 in the 1990s.

Under the hood, the SF90 XX retains the regular plug-in hybrid powertrain, but with a slight increase in horsepower. This powertrain comprises a turbocharged 4.0-liter V-8 engine, 8-speed dual-clutch automatic transmission, and three electric motors (two in the front, one in the rear). While the regular SF90 delivers a combined 986 horsepower, the XX versions pack an enhanced output of 1,016 horsepower.

Modifications to the powertrain primarily focus on the V-8 engine, which now features polished inlet and exhaust ducts, an elevated compression ratio, new pistons, and optimized combustion chamber machining for improved airflow. Additionally, the intake plenum tube has been redesigned and repositioned closer to the bulkhead to create a more captivating engine sound within the cabin.

Ferrari has also fine-tuned the transmission software to offer a more dynamic acceleration experience and added a boost function from the electric side of the powertrain. This boost engages when the driver fully depresses the accelerator pedal. Ferrari claims the SF90 XX versions can achieve a blistering 0-62 mph acceleration in 2.3 seconds and a top speed of 199 mph.

Significant upgrades have been made to the chassis and aerodynamics as well. The enhanced aerodynamics include the aforementioned fixed rear wing, an extended front splitter, front air ducts, active underbody elements, and a new diffuser. These additions collectively generate substantial downforce, with Ferrari stating that the cars produce nearly 1,170 pounds of downforce at 155 mph.

Regarding the chassis, Ferrari engineers focused on delivering exceptional performance while ensuring an enjoyable driving experience, even at the vehicle’s limits. The lateral acceleration has improved by 9%, primarily due to the increased downforce, and body roll has been reduced by approximately 10% through various chassis refinements. The brake package has also been upgraded, with improved cooling for the front rotors and slightly larger rear rotors. Additionally, the brake pads offer an increased contact surface, resulting in a higher coefficient of friction.

The introduction of new sensors provides additional data by measuring acceleration and rotational speed on three axes (X, Y, Z). This advancement enables the vehicle’s dynamic control systems, such as stability and traction control, to more accurately interpret the car’s behavior, resulting in more precise interventions. The ABS system also benefits from these new sensors, allowing for later braking.

Pricing for the SF90 XX coupe starts at approximately $844,000, while the convertible variant starts at around $932,000. These figures represent approximately double the price of the regular SF90 versions.

The SF90 XX Stradale and SF90 XX Spider are believed to be among the final iterations of the SF90 supercar range. Since its debut in 2019, the SF90

Frequently Asked Questions (FAQs) about Performance

What are the XX versions of the SF90 Stradale and SF90 Spider?

The XX versions of the SF90 Stradale and SF90 Spider are enhanced variants of these supercars offered by Ferrari. They incorporate extreme characteristics typically found in experimental track cars, while still being street-legal.

What modifications have been made to the powertrain of the SF90 XX versions?

The powertrain of the SF90 XX versions retains the regular plug-in hybrid setup but receives a slight bump in horsepower. The modifications include polished inlet and exhaust ducts, increased compression ratio, new pistons, optimized combustion chamber machining, and redesigned intake plenum for a more visceral sound.

What are the key aerodynamic upgrades in the SF90 XX models?

The SF90 XX models feature a fixed rear wing, extended front splitter, front air ducts, active underbody elements, and a new diffuser. These upgrades, along with other aerodynamic enhancements, contribute to significant levels of downforce, generating nearly 1,170 pounds at 155 mph.

How does the chassis of the SF90 XX versions improve performance?

Ferrari engineers focused on delivering extreme performance while maintaining an enjoyable driving experience. The chassis upgrades result in a 9% improvement in lateral acceleration, reduced body roll by around 10%, and enhanced braking capabilities with improved cooling and increased contact surface for the brake pads.

What is the pricing of the SF90 XX Stradale and SF90 XX Spider?

The starting price for the SF90 XX coupe is approximately $844,000, while the convertible variant starts at around $932,000. These prices are roughly double the cost of the regular SF90 versions.

Are there any plans for future SF90 models?

It is believed that the SF90 XX Stradale and SF90 XX Spider mark the final versions of the SF90 supercar range. With the typical Ferrari five-year life cycle, a successor to the SF90 is expected to arrive within the next 12-18 months.

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5 comments

Speedster123 June 29, 2023 - 5:59 pm

with 1,016 hp and a 0-62 mph time of 2.3 seconds, the sf90 xx is a true speed demon. i can already imagine the adrenaline rush behind the wheel. ferrari keeps pushing the boundaries of performance.

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SpeedDemon777 June 29, 2023 - 11:28 pm

whoa, the sf90 xx got more power, more downforce, and better brakes! ferrari knows how to make a supercar that can handle like a beast. gotta save up some serious cash for these babies.

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TrackRacer99 June 30, 2023 - 12:39 am

the sf90 xx stradale and spider look absolutely mean with their fixed rear wings and aerodynamic upgrades. i bet they stick to the road like glue. wish i could get my hands on one of those limited editions.

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CarEnthusiast23 June 30, 2023 - 8:15 am

ferrari did it again with these new sf90 xx cars wow! they’re like experimental track cars but you can drive them on the street too. so cool! can’t wait to see what they come up with next.

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FerrariFanatic June 30, 2023 - 9:20 am

the sf90 xx is the ultimate fusion of power and style. ferrari’s attention to detail is unmatched, from the polished inlet and exhaust ducts to the redesigned front fascia. this is what dreams are made of.

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