the P1 GTR, which very much does include racing.
Back to the FXX K, the headlines include modification of LaFerrari's 6,262cc V12 with mechanical rather than hydraulic tappets, revamped and 'specially' polished intake manifolds and ... no silencers. Nice! On its own the V12 now delivers 860hp, up from LaFerrari's 800hp. Which would be adequate on its own, right?
But of course in the hybrid age internal combustion power is only half the story. Or, in FXX K's case, 81.9 per cent of the story. Because with a 190hp boost from the HY-KERS the electrically assisted peak horsepower is 1,050hp, torque now 'more than' LaFerrari's 664lb ft. So it'll go well, and make a fantastic noise doing it. But an XX car wouldn't be an XX car without some wild looking aero and here the FXX K car achieves a 50 per cent improvement in downforce in its low-drag configuration and a 30 per cent improvement in its more aggressive setting. This equates to 540kg of downforce at 124mph - a P1 in its track configuration makes 600kg at 161mph - and some suitably wacky looking bodywork.
Rather than just paraphrase here, in Ferrari's words, is how it all works. "The front of the car is dominated by a twin-profile spoiler and a larger splitter, which is 30 mm lower, with a gap in its centre. This design is an application of the concepts developed to improve aero balance in the GT category of the WEC ... Two pairs of vertical elements, an endplate and, externally, a dive plane, together with vertical fins channel the air towards the car's flanks, generating a longitudinal vortex that creates a localised depression. This in turn sucks the wake from the wheels to the outside of the aerodynamic underbody. Along with the side skirts that extend out from the sills, the vortex helps isolate the airflow from the underbody to boost its efficiency."
Still with us or are you now dreaming of unsilenced V12s? Because we're not done yet.
So there you go. It looks mental, goes like stink and you can't actually own it, even if accepted as part of the programme. Full tech spec below if you're not already tech'd out...
Meanwhile we'll be booking a circuit for the twin-test versus the McLaren P1 GTR.
TECHNICAL SPECIFICATIONS [Reproduced verbatim from Ferrari press release]
Total maximum power 1,050 hp
Total maximum torque >900 Nm [664lb ft]
V12 maximum power* 860hp@9,200 rpm
Maximum revs 9,250 rpm
V12 maximum torque 750Nm@6,500 rpm [553lb ft]
Electric motor output 140 Kw (190hp)
Type 65-deg. V12
Bore and stroke 94x75.2 mm
Total displacement 6,262 cc
Specific power 137 hp/l
Length 4,896 mm
Width 2,051 mm
Height 1,116 mm
Wheelbase 2,650 mm
Front double wishbones
Tyres (Pirelli P-Zero slicks with sensors )
Front 285/650 - R19 x10.5
Rear 345/725 - R20x13
Carbon ceramic brakes (Brembo)
Front 398x223x36 mm
Rear 380x253x34 mm
ESC stability control
High perf ABS/EBD Performance anti-lock system/electronic brake balance
EF1-Trac F1 electronic traction control integrated with the hybrid system
E-Diff 3 third generation electronic differential
SCM-E Frs magnetorheological damping with twin solenoids (Al-Ni tube)
* with dynamic ram effect