This one-off $4m Ferrari was built in secret and is the rarest Ferrari model ever produced
- Built by Pininfarina, it’s based on the Ferrari F430
- It was built on commission for a car collector and race team owner
- Despite its rarity and value, the owner drives it on a regular basis
Published on Nov 16, 2023 at 1:18 PM (UTC+4)
by Alessandro Renesis
Last updated on May 12, 2025 at 5:45 PM (UTC+4)
Edited by
Adam Gray
This is the rarest Ferrari ever built.
In fact, the word ‘rare’ doesn’t cut it, because there’s only one of these in the world.
And no one even knew it was being built until it was unveiled.
READ MORE: Ferrari’s new halo hypercar spotted in Italy with massive rear wing
The Ferrari P4/5 by Pininfarina is the rarest, most unique street-legal Ferrari in the world.
It’s owned by Jim Glickenhaus, a collector and race team owner, who oversaw the entire manufacturing process.
While most collectors buy these cars and never use them, Glickenhaus loves this car so much he actually drives it on a regular basis.
Not that long ago, the P4/5 was the protagonist of a YouTube video in which it was being detailed.
Imagine that.
It may not be immediately clear just by looking at it, but the P4/5 is based on a Ferrari F430.
The engine is a 6.0-liter V12, sending over 660 horsepower to the rear wheels via a six-speed manual gearbox.
Thanks to its lightweight construction and its low drag coefficient, the P4/5 can reach 60 mph (97 km/h) from standstill in around 3 seconds.
The top speed is 233 mph (375 km/h).
Even though it’s based on a F430, the P4/5 incorporates design cues from other iconic Ferraris.
The rear window, for example, draws its inspiration from the 512S, while the side vents are similar to those found on the Ferrari 330 P3.
The ‘normal’ doors are gone, too, and the car now has butterfly doors.
The car was unveiled at Pebble Beach in 2006, and it reportedly cost Glickenhaus around $4 million.
At today’s rate, when adjusted for inflation, that’s over $6 million.
However, the true value of the car is probably higher than that – for two reasons.
Because there’s only one in existence and, more importantly, because Glickenhaus isn’t thinking about selling it.
Alessandro is an automotive journalist with 10 years of experience covering supercars, automotive history, emerging vehicle technology, and luxury transportation. He wrote the first article published on SupercarBlondie.com when the website launched in 2022 and has since built a reputation for insightful reporting across the automotive and transportation industries. His expertise is grounded in hands-on experience. Alessandro has driven every Tesla model ever produced, from the original Roadster to the Cybertruck, and regularly covers the latest developments in electric vehicles and automotive innovation. His passion for transportation extends beyond cars, he has even flown a Boeing 787 Dreamliner simulator in Addis Ababa, Ethiopia. His reporting spans everything from classic American muscle cars and rare automotive discoveries to luxury yachts, private aircraft, high-end watches, and cutting-edge vehicle technology. Known for his deep knowledge of automotive history and ability to uncover the stories behind iconic vehicles, Alessandro brings readers a blend of historical context, technical expertise, and first-hand experience.
