Eccentrica V12 Roadster Revealed: Eccentrica has revealed the V12 Roadster, an open-top reimagining of the first-series Lamborghini Diablo built around a re-engineered 5.7-litre naturally aspirated V12 and a six-speed gated manual gearbox — a combination that, in 2026, no longer exists anywhere in Lamborghini’s own showroom. Only 19 examples will be built, and the car makes its public debut on August 14, 2026, at The Quail, A Motorsports Gathering, during Monterey Car Week. This is a small Italian restomod house doing something the manufacturer that built the original car has quietly walked away from, and that alone is worth understanding before getting into the specifications.
Who Eccentrica is, and why the Diablo specifically
Eccentrica is based in the Republic of San Marino, the tiny independent state entirely surrounded by Italy, and it was founded on a genuinely personal premise. Entrepreneur and Lamborghini collector Emanuel Colombini built the company around the idea of preserving an era of motoring he believed would never be replicated — specifically the roar of a naturally aspirated V12, the mechanical feel of a gated six-speed manual, and the tactile honesty of analogue gauge needles climbing across a physical dial rather than a digital readout. That vision first became a physical car in 2024 with the original Eccentrica V12, a re-engineered first-series Diablo coupe nicknamed “La Prima” — Italian for “The First” — which debuted at Monterey Car Week and immediately established the brand’s credibility in a restomod market that, at the high end, is genuinely saturated with competing projects.
The Diablo itself is a deliberate choice of donor car. It was never the fastest, most exclusive, or most technically sophisticated supercar of its era, but it defined the look and feeling of the 1990s Lamborghini more completely than almost any other model, and that specific decade of Lamborghini design has become a serious collector focus again as the people who lusted after one 30 years ago now have the means to actually own one.
What’s genuinely new versus the original Eccentrica V12 coupe
The V12 Roadster is Eccentrica’s second model, and it isn’t simply a coupe with the roof sawn off. According to the company, more than 3,500 bespoke components go into building each car — a full re-engineering exercise rather than a modification of an existing donor Diablo’s structure. The body is reconstructed entirely from carbon fibre (Top Gear’s early reporting describes a steel-and-carbon-fibre composite structure specifically for the open-top car), and the Roadster is noticeably wider of track and broader of haunch than the already dramatic-looking coupe, which Eccentrica says pushes the design “to transform the car into its most elemental and purposeful form yet.”
Development on the Roadster was led by Maurizio Reggiani, Lamborghini’s former Chief Technical Officer, who had a direct hand in the Murciélago, Gallardo, Aventador, and Huracán programmes during his time at the factory. That’s a genuinely significant technical credential for a boutique restomod outfit to have secured — it isn’t a small tuning shop bolting on parts, it’s an operation with real supercar-engineering pedigree steering the project. Exterior design work came from the Milan-based studio Borromeo De Silva.
Suspension has been reworked with redesigned geometry and bespoke semi-active dampers, matching the approach used on the coupe, while the car also gains hydraulic steering and Brembo brakes for the Roadster-specific application.
The engine: what makes 550 horsepower without a turbo in 2026
The heart of the car is a re-engineered version of the Diablo’s original 5.7-litre naturally aspirated V12. According to the company’s own performance figures, it’s been brought up to 550 horsepower at 7,000 rpm and 600 Nm (roughly 443 lb-ft) of torque at 6,500 rpm through ECU recalibration, improved thermal management, and optimised airflow efficiency — plus, according to one outlet’s reporting, new camshafts and an electric throttle body. Notably, that output figure is around 65 horsepower more than the original factory Diablo Roadster ever produced, achieved without forced induction and without a hybrid assist system of any kind, at a moment when almost every other manufacturer chasing similar power figures is reaching for turbochargers or electric motors to get there.
Power reaches the road exclusively through the rear wheels via a six-speed gated manual gearbox — the physical, metal-gate shifter pattern that largely disappeared from supercars a decade ago — with three selectable driving modes to adjust the car’s character for different conditions. Eccentrica claims a top speed in excess of 208 mph, and the car reportedly weighs just under 3,400 pounds (roughly 1,542 kg), a genuinely light figure for a V12-powered open-top car with this kind of structural reinforcement built in to compensate for the missing roof.
Colombini has described the driving experience in blunt terms: “The Eccentrica V12 was our opening statement. The Roadster is the next chapter; more exposed, more immediate, more demanding. No roof. No filter. Nothing between you and the machine.”
Inside the cabin
The interior mixes Connolly leather — the same British tannery whose hides have historically clad everything from Rolls-Royce to Aston Martin cabins — with Alcantara, anodized metal finishes, and exposed carbon fibre, giving the cockpit real material contrast rather than a single dominant texture. As with every other element of the car, Eccentrica builds each interior to the individual owner’s specification, meaning no two of the 19 Roadsters will be trimmed identically. That’s standard practice at this end of the bespoke coachbuilding market, but it’s worth noting explicitly here: buying an Eccentrica isn’t choosing from a configurator with pre-set options, it’s a genuine one-to-one commissioning process.
Pricing, production, and what it says about the current market
Eccentrica has not disclosed pricing for the V12 Roadster in its press materials, and outlets covering the car’s reveal have made educated estimates rather than reporting a confirmed figure — Top Gear’s early coverage puts the coupe’s value at “over a million” pounds as a benchmark, suggesting the open-top version, given its added engineering complexity, is unlikely to come in any cheaper. Production is capped at 19 units, each individually configured, making it a meaningfully rarer proposition than the already limited coupe.
The car will be seen in person for the first time outside Eccentrica’s San Marino workshops on August 14 at The Quail — one of the most closely watched unveiling venues during Monterey Car Week, alongside Pebble Beach itself, and a stage typically reserved for genuinely significant reveals rather than minor variant announcements.
Why this matters beyond a small circle of collectors
The broader story here isn’t really about 19 wealthy buyers getting an extremely expensive, extremely rare open-top Diablo. It’s about what it says regarding where genuine mechanical purism now lives in the supercar world. Lamborghini itself no longer builds a naturally aspirated V12 paired with a manual gearbox — its current flagship, the Revuelto, uses a hybridised V12 with electric motors and no manual option, and that’s true across essentially the entire modern hypercar landscape, where turbocharging, hybridisation, and paddle-shift transmissions have become close to universal even among brands historically associated with mechanical drama.
Eccentrica, a small team based in one of the smallest sovereign states in the world, is explicitly building the thing the original manufacturer has moved away from. That’s not a nostalgia exercise dressed up as a business — it’s a genuine market gap that a handful of well-resourced restomod houses across Europe (Eccentrica among them, alongside operators working on Porsche, Ferrari, and other 1990s and early-2000s platforms) have identified and are now actively filling. Whether that segment continues to grow depends entirely on how many buyers at the very top of the market decide a manual gearbox and an unassisted V12 are worth paying a seven-figure premium over a brand-new hypercar to get. The fact that Eccentrica has moved from a single coupe model in 2024 to a second, even more exclusive variant within two years is itself a signal that the company has found real demand for the proposition, even without official sales figures to confirm it.
FAQs
How much does the Eccentrica V12 Roadster cost? Eccentrica has not disclosed official pricing for the V12 Roadster. Industry estimates, based on the earlier coupe’s reported value of over £1 million, suggest the Roadster will command a similar or higher price, though no confirmed figure has been published.
How many Eccentrica V12 Roadsters will be built? Production is limited to 19 examples, with each car individually configured to its owner’s specification, meaning no two will be identical.
What engine does the Eccentrica V12 Roadster use? A re-engineered 5.7-litre naturally aspirated V12, derived from the original Lamborghini Diablo’s engine, producing 550 horsepower at 7,000 rpm and 600 Nm (443 lb-ft) of torque at 6,500 rpm, paired exclusively with a six-speed gated manual gearbox.
When and where will the Eccentrica V12 Roadster be revealed to the public? The V12 Roadster makes its first public appearance on August 14, 2026, at The Quail, A Motorsports Gathering, part of Monterey Car Week.
What car is the Eccentrica V12 Roadster based on? The V12 Roadster is based on the first-series Lamborghini Diablo, re-engineered with a carbon-fibre body, redesigned suspension, and more than 3,500 bespoke components, following Eccentrica’s original V12 coupe model that debuted in 2024.