Ferrari P4/5



The Ferrari P4/5 (officially known as the Ferrari P4/5 by Pininfarina) is a "one-off" supercar made by Italian sports car manufacturer, Ferrari but redesigned by Pininfarina for James Glickenhaus. The car was an Ferrari Enzo but the owner James Glickenhaus preferred the styling of Ferrari's 1960s race cars, the P Series. The project cost Glickenhaus US$4 million but in an interview he said "I feel they gave me more than I expected". It was first presented to the public on August 18, 2006 at the Pebble Beach Concours d'Elégance.

Development
In early 2005 James Glickenhaus, a car collector, imagined a modern Ferrari P and in June of that year he signed a contract with Pininfarina to make the image take shape. Glickenhaus purchased the last unsold Enzo Ferrari and upon receipt of the car he took it to Pininfarina to be redesigned similar to the 1967 Ferrari 330 P4 which he also delivered to Pininfarina. Pininfarina's styling team leader, Ken Okuyama, wanted to move away from the past and design a future oriented supercar as they were excited by the opportunity to build the car, not just design it.

Its design began in September 2005 with sketches by Jason Castriota moving through computer aided sculpture and stringent wind tunnel testing. More than 200 components were designed especially for the car though the engine, drivetrain and many other components are simply modified from the original Enzo Ferrari. The car shares the same Vehicle Identification Number as the Enzo it was derived from.

Interior
The interior of the P4/5 was designed by Glickenhaus himself with an iPod nano stereo and a tablet PC which features not only GPS but a 3D model of the car as well as a complete parts list and manual for easy servicing. The P4/5 also sports improved air conditioning over the Enzo and a super-strength alloy roll bar redesigned because the original was too thick and obstructed Glickenhaus' view. The seats are custom built, Glickenhaus' and his son's bodies were scanned so Pininfarina could mould the seats for their comfort, accessibility and view of the road (as with race cars). With a frame of carbon fibre, the seats fabric and colour was designed by his daughter. Pininfarina rearranged the wiring of the Enzo so as to make the car not only lighter but easier to service and making the car 270 kilograms lighter than the Enzo.

Exterior
The exterior of the car is made entirely of carbon fibre and shares its shape with the Ferrari 330 P4 as Glickenhaus requested, however it has been called a "rolling history of Ferrari-racing-DNA" sharing elements from several historic Ferrari vehicles not just the 330 P4; the rear window is similar to that of the Ferrari 512S and the side vents are similar to the Ferrari 330 P3. The nose is similar to that of the Ferrari 333SP which improves cooling and the car's frontal crash safety. The butterfly doors (similar to those of the McLaren F1) are designed such that even at 260 kilometres per hour there is no wind noise. The improved aerodynamics have proven themselves giving the car greater downforce at the same time as less drag than the Enzo also making the car more stable than the Enzo at high speeds.

Specifications
The Ferrari P4/5 can accelerate from 0-100 kilometres per hour (0-62 mph) in 3.55 seconds (0.1 seconds quicker than the Enzo). It has a top speed of 362 kilometres per hour also slightly quicker than the Enzo Ferrari. The car has a frontal area of 1.906 square metres but the sharp nose and smooth curves mean it has a drag coefficient of only 0.34.

Engine
The P4/5 has the same engine as the Enzo Ferrari it was built on, a Dino F140 mounted at 65°. The 12 cylinders have a total capacity of 5998 cubic centimetres, each with 4 valves. The redline rpm at 8200 and the torque of 657 Newton metres (485 ft lbs) at 5500 rpm are both the same as the Enzo, but it produces marginally more power with 492 kW (660 bhp) at 7800 rpm.

Chassis
The P4/5 uses the 6 speed semi-automatic transmission of the Enzo but instead of paddles behind the wheel, it has Formula 1 style, steering wheel mounted shift buttons. The front tyres have codes of ZR 255/35 and the rear, ZR 335/30.