The new Ferrari SF90 Stradale is extreme in every way and represents a turning point because it offers performance levels never before seen in a production car. A maximum power output of 1,000 cv, a weight-to-power ratio of 1.57 kg/cv and 390 kg of downforce at 250 km/h: these are the numbers that not only put the SF90 Stradale at the top of its category but which, for the first time in Ferrari history, allow a car equipped with a V8 engine to be at the top of the range. The name itself captures the true significance of what has been achieved in terms of performance – the reference to the celebration of 90 years of Scuderia Ferrari underlines the close link that has always existed between the world of racing and road cars. The SF90 Stradale, the most advanced expression of the technology developed in Maranello, is proof of how the knowledge acquired through competition can be immediately applied to a Ferrari production car. The SF90 Stradale is equipped with a 90° V turbo internal combustion engine capable of delivering 780 cv, the highest power output ever achieved by an 8-cylinder in Ferrari history. The remaining 220 cv is supplied by three electric motors, one at the rear, which derives from the Formula 1 application and hence inherits the name MGUK (Motor Generator Unit, Kinetic), located between the internal combustion engine and the new-generation 8-speed dual-clutch transmission, and two on the front axle. The SF90 Stradale is also the first Ferrari sports car to be equipped with all-wheel drive, a necessary step to fully exploit the incredible power unleashed by the hybrid powertrain and to become the new benchmark for standing starts: 0-100km/h in 2.5 sec, 0-200km/h in just 6.7 seconds. Ferrari engineers were able to further broaden the spectrum of dynamic controls with the electric front axle, known as RAC-e (Regolatore Assetto Curva Elettrico). In addition to providing exclusive propulsion in electric drive, the two front electric motors independently control the torque delivered to the two wheels, completing and extending the concept of Torque Vectoring. Integrated into the vehicle dynamic controls, the RAC-e manages torque on an instant-by-instant basis, allowing the driver to reach the limit more easily and safely. The introduction of the hybrid architecture also posed a challenge in terms of weight management and a huge amount of work was done to optimise and lighten the vehicle. To reach new limits in terms of overall weight, rigidity and centre of gravity, the chassis and bodyshell of the SF90 Stradale are completely new and exploit multi-material technology, including carbon fibre. The development of a hybrid car like the SF90 Stradale involved finding a series of innovative aerodynamic solutions. While on the one hand the significant increase in performance of the power unit has brought with it an increase in the thermal power to be disposed of, pushing the development team to a thorough review of the aerodynamic flows on the radiating masses, on the other it has led to the need to study new solutions to increase the downforce efficiently and guarantee maximum stability at all speeds and driving conditions. Worthy of note is the innovative shut-off Gurney, a patented active system which, by regulating the flows that hit the upper part of the body at the rear, allows for a reduction in resistance in straight-line driving situations or with minimal steering angles, while maximising vertical load in the event of braking, changes of direction or when cornering during performance use of the car. For the first time on a Ferrari, a specific set-up is proposed for those clients who want to further accentuate the racing set-up of their car. The Assetto Fiorano trim differs from the standard one for the special Multimatic shock absorbers derived from GT racing, for the additional lightening, thanks to the use of high-performance materials such as carbon fiber (door panels, floor) and titanium (springs, complete exhaust line) which have allowed a weight reduction of 30 kg, and for the high-load rear spoiler in carbon fiber, capable of generating 390 kg of downforce at 250 km/h. The Assetto Fiorano equipment includes Michelin Pilot Sport Cup2 tires specifically designed to improve performance on the track in dry asphalt conditions. They feature a softer compound and a smaller number of grooves than those offered with the basic equipment. Here's how the design is made, how the interiors are made, how it drives on the road in the test drive by Emiliano Perucca Orfei Masterpilot Automoto.it