This Roofless Lamborghini Diablo Restomod Keeps the V12 and Manual Gearbox

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Eccentrica V12 Roadster rebuilds the Lamborghini Diablo as a 19-unit open-top restomod with a 550-hp V12 and gated manual.

At a glance

Product snapshot

Listed price
Price on request
Where to find it
Eccentrica
Category
Ridiculous

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Some cars are transportation. This one is what happens when a 1990s bedroom poster grows up, finds a very serious tailor, and decides the roof was simply too much emotional baggage.

Eccentrica V12 Roadster shown from the rear on a mountain road

The Eccentrica V12 Roadster is a roofless, deeply re-engineered Lamborghini Diablo restomod from Eccentrica, a company that apparently looked at one of the loudest shapes ever to leave the 1990s and thought, yes, but what if it also gave your hairline a weather report at 208 mph?

This is not a casual convertible conversion, or a Diablo with some shiny wheels and an invoice written in a dramatic font. Eccentrica describes the V12 Roadster as an open-air evolution of its V12 Coupe project, built around the first-series Lamborghini Diablo and rebuilt with modern materials, updated mechanicals, and a strong devotion to the analog supercar experience. In plain human terms: old-school wedge drama, new-school obsessive engineering, and no roof to protect you from your own life choices.

The shape is still pure Diablo theater. It is low, wide, sharp, and mildly threatening in the way only a 1990s Italian supercar can be. But the Roadster gets Eccentrica’s own bodywork treatment, carbon-fiber elements, widened stance, revised aero, updated lighting, modern wheels, and enough visual intensity to make regular parking lots feel underdressed.

Under the dramatic rear deck sits a reworked naturally aspirated 5.7-liter V12. Eccentrica lists output at 550 horsepower, with power sent through a gated six-speed manual transmission. That last part matters. In an era when many performance cars communicate with the driver through screens, menus, drive modes, software updates, and the emotional temperature of a tablet, this thing still asks you to physically move a metal lever through a gate like a person with responsibilities and forearm tendons.

Side profile of the Eccentrica V12 Roadster with its door open by the coast

Removing the roof from a car like this is not as simple as giving the Diablo a surprise haircut. The original car’s roof is part of the structure, and once you invite the sky into the cabin, everything else has to be reconsidered. Eccentrica says the Roadster uses carbon-fiber structural reinforcement and a dedicated aerodynamic study to help manage the open cabin. That means the wind gets treated like an unruly dinner guest instead of just being allowed to slap everyone in the sunglasses.

The result is a supercar that feels deliberately out of step with the modern performance arms race. It is not trying to be a silent electric missile or a rolling gaming PC. It is trying to preserve the raw, mechanical weirdness of the Diablo while making it sharper, more stable, better finished, and less likely to behave like a beloved exotic car from a decade when cup holders were considered suspicious technology.

  • A re-engineered 5.7-liter naturally aspirated V12 rated at 550 horsepower.
  • A gated six-speed manual transmission for maximum analog theater.
  • Open-top Roadster bodywork based on the first-series Lamborghini Diablo.
  • Carbon-fiber structural reinforcement and carbon-fiber body elements.
  • Modern Brembo braking hardware, revised suspension geometry, and semi-active dampers.
  • Individual configuration for each customer, because apparently choosing a normal car was never on the menu.

Eccentrica is keeping production extremely limited, with only 19 V12 Roadsters planned. That number is small enough that most people will have a better chance of seeing a meteorite gently parallel park than spotting one of these at the grocery store. But that scarcity is part of the point. This is a commission-style machine for collectors who want the spirit of a Diablo without pretending that 1990s supercar ergonomics were secretly perfect.

FeatureVerified detail
Base inspirationFirst-series Lamborghini Diablo
EngineNaturally aspirated 5.7-liter V12
Power550 horsepower
TransmissionGated six-speed manual
Body styleOpen-top roadster restomod
Production19 bespoke examples planned
Top-speed claimAbout 208 mph, according to published launch coverage

The cabin follows the same basic philosophy: preserve the emotional machinery, then clean up the bits that make vintage exotic ownership feel like a personality test administered by leather and heat soak. Published details point to premium materials such as leather, Alcantara, anodized trim, and exposed carbon fiber, with customization available for individual buyers. So yes, you can probably spec it tastefully. You can also probably spec it like a rich villain’s espresso machine. That is between you and your upholsterer.

Rear detail of the Eccentrica V12 Roadster showing its exhaust and grille

The funniest thing about the V12 Roadster is that it solves a problem almost nobody has: what if your Lamborghini Diablo restomod was too enclosed and emotionally restrained? But that is also why it belongs in the small museum of products that make OddityMall worth opening during lunch. It is completely unnecessary, wildly expensive in spirit, mechanically specific, visually outrageous, and somehow sincere.

There is also something refreshing about the restraint hidden under all that drama. Eccentrica did not stuff the car with a hybrid system, an automatic gearbox, an enormous screen, or an identity crisis. The headline is still engine, shifter, steering, brakes, body, and driver. That is practically monk-like simplicity, assuming the monk owns carbon fiber and screams at 7,000 rpm.

The Roadster’s engineering changes are meant to make the old Diablo idea more usable without sanding away its point. Semi-active dampers and modern brakes bring the car closer to contemporary expectations. Hydraulic steering keeps the connection physical. The carbon-fiber reinforcement helps compensate for the missing roof. The bodywork keeps the wedge alive while letting Eccentrica add its own sharper surfaces, rear treatment, and roadster-specific proportions.

Eccentrica V12 Roadster chassis and carbon-fiber reinforcement detail
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This is the type of car that makes practical questions sound rude. Does it have cargo space? Can it survive a school pickup line? Is there a place to put a gas-station sandwich while your insurance agent whispers into a paper bag? Those are fair questions for vehicles operated by reasonable adults. The Eccentrica V12 Roadster is not being built for reasonable adults. It is being built for someone who wants a manual V12 Diablo restomod with the sky directly involved.

And because each example is bespoke, the photos should be treated as a window into the project rather than a single locked configuration. The roadster can lean elegant, sinister, nostalgic, or full exotic-car fever dream depending on the customer’s spec. That flexibility fits the whole concept: a familiar silhouette rebuilt into something intensely personal, like commissioning a tuxedo for a shark.

Eccentrica V12 Roadster detail view showing its sculpted bodywork

For anyone who grew up with the Diablo as wall art, the appeal is easy to understand. The original was never subtle. It looked like it had escaped from a geometry class that got really into heavy metal. Eccentrica’s version keeps that emotional blunt force, then layers in the kind of technical attention that collectors now expect from high-end restomods. The car is still outrageous, but the outrage has been cataloged, machined, reinforced, upholstered, and limited to 19 slots.

The Eccentrica V12 Roadster is available through Eccentrica, with pricing listed as price on request. Given the limited 19-car production run, bespoke configuration, donor-car basis, and extensive re-engineering, this is firmly in the collector-grade dream-machine category rather than the casual weekend impulse-buy aisle. Your credit card will not merely tap. It will leave a farewell note.

  • Product: Eccentrica V12 Roadster
  • What it is: An open-top Lamborghini Diablo restomod
  • Engine: Reworked naturally aspirated 5.7-liter V12
  • Output: 550 horsepower
  • Transmission: Gated six-speed manual
  • Production: 19 bespoke examples planned
  • Price: Price on request
  • Source: Eccentrica, with launch coverage from Uncrate and automotive press
Eccentrica V12 Roadster shown in a dramatic exterior driving setting

If your ideal vehicle is quiet, sensible, efficient, and unlikely to make strangers point at it, this is absolutely not your department. If your ideal vehicle is a roofless V12 wedge with a gated manual and the emotional subtlety of a fireworks finale in a marble showroom, Eccentrica has built something very specific for your particular condition.

Eccentrica V12 Roadster official exterior image
ProsCons
Preserves the analog V12 and manual-shift appeal of a Diablo-style supercarOnly 19 examples are planned, so availability is extremely limited
Open-top body makes the already theatrical shape even more dramaticPrice is not publicly listed and will not be casual
Modern brakes, suspension, reinforcement, and materials address old-supercar compromisesStill a collector restomod, not a practical daily driver
Bespoke configuration gives each buyer a highly personal buildRequires donor-car-level context and serious maintenance expectations
No hybrid system or automatic gearbox diluting the analog characterRoofless V12 drama is glorious but not exactly subtle

Where to find This Roofless Lamborghini Diablo Restomod Keeps the V12 and Manual Gearbox

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James Harrison

About the author

James Harrison

James Harrison is a 41-year-old writer and product scout from the Minneapolis area with a serious soft spot for gadgets, quirky inventions, and gifts that make people say, “Wait—where did you find that?” At OddityMall, he explores the…