Ferrari has just revealed the F12tdf –a legendary endurance road race that Ferrari dominated the track with in the 1950s and ‘60s. With Ferrari’s continuous commitment to melding sculptural beauty with functional demands, it’s the ultimate expression of the concept of an extreme road car that is equally at home on the track.
With just 799 cars to be built, the limited edition F12tdf, is a concentration of technical innovations, which involve all those areas central to Ferrari’s DNA: engine, aerodynamics and vehicle dynamics. As a result, in terms of acceleration, road-holding and agility, the new berlinetta is second to none.
The F12tdf’s performance is assured by the 780 cv, naturally-aspirated V12 derived directly from the F12berlinetta’s multi-award-winning engine.
The car’s exhilarating dynamic behaviour, specifically its lateral acceleration in corners, is due to an 8% increase in the ratio of the front tyres compared to the rear ones.
A radical redesign of the bodywork, interior, engine, transmission and running gear, along with the abundant use of carbon-fibre inside and out, has slashed 110 kg off the car’s overall weight.
All of these factors combine to produce record performance figures: 0-100 km/h in 2.9 seconds and 0-200 km/h in 7.9 seconds in addition to a substantial boost in lateral acceleration.
Outstanding stopping distances are guaranteed by the adoption of the new Extreme Design one-piece brake callipers already seen on the LaFerrari. This new-generation system means the car can brake from 100-0 km/h in just 30.5 m and from 200-0 in 121 m.
The engine is the F12berlinetta’s 6262cc 65° V12 on which Ferrari engineers worked to boost maximum power output from 740 cv to 780 cv at 8,500 rpm, yielding a specific power output of 125 cv/l.
The engine’s sporty response is assured by a maximum torque figure of 705 Nm (up from 690 Nm) at 6,750 rpm with 80% already available at 2,500 rpm, resulting in unparalleled, progressive pick-up all the way to the red-line at 8,900 rpm.
Numerous modifications have been developed for this engine, starting with the use of race-inspired mechanical tappets and variable-geometry intake trumpets used on Formula 1 cars which help boost volumetric efficiency at high revs.
Ferrari’s engineers sought to create an extremely agile and powerful car which could also be driven by less expert drivers. They drew on the wealth of experience built up in the XX programmes, which are dedicated to developing extremely high performance cars driven by non-professional drivers.
Extraordinary chassis dynamics, in terms of maximum lateral acceleration and responsiveness, are in part achieved by the increase in the front tyre dimensions, which jump from 255 to 275, along with the front channel size – up from 9.5” to 10”. This modification guarantees higher lateral acceleration generated by the front axle but, alone, this would have caused oversteer on the limit, making the car more challenging for less expert drivers.
To enable even gentlemen drivers to make full use of the performance, Ferrari developed its new Virtual Short Wheelbase system. Debuting on the F12tdf, the rear axle is active, allowing the rear wheels to pivot around a vertical axis.
Using model-based control logic developed entirely in-house by Ferrari, the rear axle steering automatically adjusts the rear wheels, working out the optimal steering angle as a function of the steering wheel angle, speed of steering inputs and vehicle speed.
The Virtual Short Wheelbase improves the car’s responsiveness to make it feel more agile, with instantaneous turn-in that can be best appreciated on twisty roads and on more technically challenging tracks while, at the same time, improving stability at high speeds.
The F12tdf’s aerodynamic performance is nothing short of record-breaking – its aerodynamic efficiency figure is 1.6, almost double that of the F12berlinetta. Downforce is 230 kg at 200 km/h, which is an impressive 107 kg more.
Development affected every area of the car’s surface, producing striking elements that lend its forms a unique sleek power. At the front, a highly complex bumper contributes to downforce generation. It features a radically scooped lower section and incorporates a competition car-inspired splitter, dive planes, floor wings and louvres to boost the efficiency of both the sides and the underbody.
The Aerobridge on the car’s front flank has been redesigned to increase the energising effect of the air flow along the top of the sides, while at the rear, louvres on the wheelarch create a depression that extracts air from the inner wheelarch, thereby increasing the efficiency of a section of the underbody that is usually little used in generating downforce.
The rear spoiler is now 60mm longer and 30mm higher, while the rake of the rear screen has been made more vertical to extend the surface area over which the spoiler can generate downforce and to capitalise on its advantages more effectively.