While there’s no shortage of rare Ferraris that often fetch millions at auction; to truly fit the description of the rarest Ferraris ever made, nothing says that better than 1-of-1 builds. While it seems plausible to assume that most are vintage and classic beauties, you’d be surprised by how many such cars with a prancing horse badge also belong to more modern times. Some were commissioned directly through Ferrari’s Special Projects division. In contrast, others were design studies or coachbuilt experiments that became unique road cars for loyal clients of the brand, the kind who are part of their racing programs. Each was built once, never repeated, and within the prancing horse hierarchy and lineage, today sits at the very top of the exclusivity pyramid. So with that, here’s an overview of some of the Italian marque’s true one-offs. This is a mega-list featuring the rarest Ferraris in the world, of which several examples carry seven-figure valuations, even rivalling the most expensive Ferraris of all time.
2023 Ferrari SP-8
Base: F8 Spider | Classification: Factory SP
Commissioned by a Taiwanese collector, the SP-8 builds on the F8 Spider platform but reimagines it as a full roadster with no roof and a unique full-width cast aluminium grille and a unique two-tone aesthetic: the front portion features unpainted carbon fiber (with a glossy iridescent “Blue Sandstone” finish) wrapping into the tail, that contrasts against a matte Argento Micalizzato paint on the rear sections.
Ferrari carried out extensive CFD, wind tunnel, and track testing to recover lost stiffness, optimize aerodynamics, and manage acoustic comfort. It packs a 3.9-liter twin-turbo V8 rated at 710 horsepower and 568 pound-feet of torque. While Ferrari has not released official 0–60 mph or top speed figures, expect a sub-3.0 second time to 60 mph and a top speed in excess of 211 mph.
2023 Ferrari KC23 488 GT3 Evo
Base: 488 GT3 Evo | Classification: Factory SP (Track Only)
The KC23 is a bespoke one-off track machine built for a private customer, and based on the highly competent 488 GT3 Evo chassis. Ferrari retained the twin-turbo 3.9-liter V8 and competition spec gearbox but reworked suspension, cooling, and aerodynamics to match this bespoke shell. While the exact power figures weren’t disclosed, the donor 488 donor in GT3 spec packs about 600 horsepower and 516 pound-feet of torque.
The body finished in a Gold Mercury finish with liquid metal is unique: with a deep front splitter, a radical rear diffuser, wide wheel arches, sculpted side pods, unique two-piece center-lock wheels, and a removable wing. Inside, you get a roll cage and a full race-spec cockpit. As it isn’t street-legal and doesn’t have to comply with homologation, it serves as a showcase of what Ferrari’s engineers can do when given complete design freedom, further blurring the line between client car and factory race program.
2022 Ferrari SP48 Unica F8 Tributo
Base: F8 Tributo | Classification: Factory SP
The SP48 Unica is yet another one-off based on the F8 platform, the Tributo this time around. Ferrari retains the 3.9-liter twin-turbo V8 with 710 horsepower, but has reworked the exterior body panels using procedural-parametric modeling along with 3D prototyping. The result is a completely new front fascia, reprofiled side intakes, and a distinct rear treatment without a window.
Inside, bespoke trims and laser-perforated Alcantara, unique hexagonal stitching patterns, and carbon fiber detailing reflect the owner’s taste. The SP48 demonstrates how Ferrari can take a current production car and reinvent it from the ground up, creating something entirely new without touching the drivetrain.
2021Ferrari BR20
Base: GTC4 Lusso | Classification: Factory SP
The BR20 began life as a GTC4 Lusso before a loyal Ferrari client requested a leaner, two-door GT. Ferrari Engineers removed the rear seats, lengthened the body, and sculpted a sweeping fastback silhouette. The naturally aspirated 6.3-liter V12 produces 681 horsepower, paired with all-wheel drive, but the draw is its bespoke carbon panels and an overall length that is three inches longer than the standard GTC4 Lusso.
Finished in a dark metallic gray with custom cabin details, it’s a throwback to Ferrari’s 1960s coupes, but is modern underneath, and the highlight being the sweeping arches from A-pillar to rear integrated with a rear spoiler. This one-off makes the case that Ferrari’s shooting brake architecture can also be refined into an elegant V12 grand tourer.
2020 Ferrari Omologata
Base: 812 Superfast | Classification: Factory SP
The Omologata showcases Ferrari’s GT racing past into a single aluminum-bodied 812 Superfast. Commissioned by a European client, it features hand-beaten bodywork painted Rosso Magma, with the only two components carried over from the 812 being the windscreen and the headlights.
Its cabin trim references 1960s competition Ferraris. Beneath, the 6.5-liter V12 still delivers 789 horsepower, a dash to 60 mph in under 3.0 seconds, and a 211-mph top speed. However, the appeal lies in the sculpted fenders, vented hood, three horizontal cuts in the surface, integrated rear spoiler for downforce, and heritage-inspired interior touches. It took two years to complete, showing how far Ferrari can go for a one-off. With no sales records, the Omologata remains priceless.
2019 Ferrari P80/C
Base: 488 GT3 | Classification: Factory SP (Track Only)
This radical commission reimagines the 488 GTB as a futuristic prototype-inspired coupe. Built for a private client, the SP80/C adopts an arrow-shaped nose, blade-like side fins, and sculpted carbon aero that draw directly from Ferrari’s endurance racers. The 3.9-liter twin-turbo V8 provides 661 horsepower, driving the rear wheels through a seven-speed dual-clutch gearbox.
Unlike many SP cars that nod to Ferrari’s past, this one points forward, hinting at shapes we’d later see in hypercar studies. Rare even among one-offs, the SP80/C showcases what the Ferrari design team’s efforts yield when given full creative freedom. Highlights include a radical wedge-like front with slim LED lighting, Massive side intakes feeding turbochargers, sculpted flying-buttress roofline, a removable rear wing (can be configured for “exhibition” or “race” setup), and a carbon diffuser spanning the full width of the tail.
2018 Ferrari SP38 Deborah
Base: 488 GTB | Classification: Factory SP
Commissioned by a longtime client with a soft spot for the F40, the SP38 Deborah is a 488 GTB transformed into a wedge-shaped homage. Designed by Flavio Manzoni’s Centro Stile Ferrari and finished in a triple-later metallic red, the slatted engine cover, slim headlights, and aggressive stance all reference Maranello’s 1980s icons like the 308 GTB and F40. Rear fascia features a single light bar with integrated exhausts
Inside, bespoke leather and carbon trim complete the transformation. The drivetrain remains the trusty 3.9-liter twin-turbo V8 with 681 horsepower on offer, topping out at 200+mph. The SP38 illustrates how Special Projects can balance nostalgia with modern performance. While its market value is unknown, collectors would easily peg it in the multi-million-dollar range.
2016 Ferrari SP 275 RW Competizione
Base: F12tdf | Classification: Factory SP
Florida collector Rick Workman commissioned the 275 RW Competizione as a tribute to the 1964 275 GTB Competizione Speciale. Built on the F12tdf chassis, it packs a 6.3-liter V12 pushing 770 horsepower to the rear wheels through a dual-clutch transmission. Painted Giallo Triplo Strato, the car blends retro inspiration with a modern twist.
Designed by the Ferrari Styling Centre in collaboration with Pininfarina, highlights include elongated headlights, triple vents, and aggressive flares, recalling the Le Mans-winning 275s. As one of the few Special Projects based on a track-tuned donor, the SP 275 is both a stylistic homage and a weapon, out on the race track.
2016 Ferrari 458 MM Speciale
Base: 458 Speciale | Classification: Factory SP
Commissioned by a British client, the 458 MM Speciale is a one-off that reimagines Ferrari’s last naturally aspirated V8 mid-engine car. Based on the 458 Speciale, it keeps the 597 horsepower 4.5-liter V8 but wears completely new aluminum bodywork with carbon fiber bumpers and a sharper, more athletic and distinctive front end.
Inspired by the 288 GTO, the redesign was done by Ferrari’s in-house Styling (Centro Stile) under the direction of Flavio Manzon. Highlights include slimmer headlights, a wraparound windshield, and a floating C-pillar that channels air to the engine. Painted Bianco Italia with an Italian tricolore stripe, the MM Speciale combines old-school craftsmanship in the modern performance era.
2015 Ferrari F12 Berlinetta SG50
Base: F12berlinetta | Classification: Tailor Made Special
Unlike client commissions, the SG50 was Ferrari’s gift to Singapore for its 50th anniversary of independence. Based on the 200+ mph F12berlinetta, it retains the 730-horsepower naturally aspirated V12 engine, but wears unique Rosso Singapore paint, with white accents, and SG50 insignia inside.
The interior carries red leather and carbon fiber trim with commemorative badging, with the seats bearing embroidery of the Singapore lion (Merlion motif) on the headrests. Though not as radical as other one-offs on this list, it remains a significant model in Ferrari’s lineage of one-off commissions, which, in this particular case, celebrates a national occasion.