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- San Marino restomod house unveils open-top Eccentrica V12 Roadster.
- Re-engineers first-series Lamborghini Diablo with 3,500 bespoke parts.
- 5.7-litre naturally aspirated V12 produces 550hp with gated manual.
- Engineered under former Lamborghini CTO Maurizio Reggiani.
- Strictly limited to 19 bespoke client commissions globally.
When San Marino-based restomod outfit Eccentrica unveiled its original fixed-roof V12 coupe a few years ago, it established itself as the go-to brand for a re-engineered, carbon-bodied homage to the first-series Lamborghini Diablo. Now, the new Eccentrica V12 Roadster takes that exact philosophy one step further, combining razor-sharp wedge proportions, pop-down hidden headlights, and boxy LED lighting graphics that channel the unmistakable presence of Grand Theft Auto’s legendary Pegassi Infernus.
Created in partnership with Milanese design studio Borromeo De Silva, the open-top creation takes an early Diablo apart and rebuilds it from the ground up using more than 3,500 bespoke components. Led by founder Emanuel Colombini and former Lamborghini Chief Technical Officer Maurizio Reggiani, the team set out to craft the ultimate analogue driving machine. By replacing the original bodywork entirely with carbon fibre and re-engineering every major mechanical system, the V12 Roadster elevates the Diablo’s infamous silhouette with modern structural precision while preserving its wild, mid-engined supercar character.
Slated for its physical public premiere at The Quail, A Motorsports Gathering on August 14, 2026, the V12 Roadster pairs a re-engineered 5.7-litre naturally aspirated V12 with a six-speed close-ratio gated manual transmission. Let’s take a closer look.
| Specifications | |
| Donor Vehicle | First-Series Lamborghini Diablo |
| Engine Architecture | 5.7-Litre Naturally Aspirated 60° V12 |
| Power Output | 550 hp @ 7,000 rpm |
| Torque Output | 600 Nm @ 6,500 rpm |
| Transmission | 6-Speed Close-Ratio Gated Manual |
| 0 to 100 km/h Acceleration | 3.8 Seconds |
| Top Speed | 335 km/h / 208 mph |
| Curb Weight | 1,540 kg / 3,395 lbs |
| Body Construction | Full Carbon Fibre Reconstruction |
| Production Volume | 19 Bespoke Units Worldwide |
| Estimated Pricing | USD$1.5 million (excluding donor car) |
Screaming V12 and a Six-Speed Gated Manual
The heart of the Eccentrica V12 Roadster is a thoroughly re-engineered 5.7-litre naturally aspirated V12 engine. Through ECU recalibration, improved thermal management, and optimised airflow efficiency, the powerplant develops 550 horsepower at 7,000 rpm and 600 Nm of torque at 6,500 rpm. The result is a 0-100 km/h sprint of 3.8 seconds and a top speed of 335 km/h (208 mph).
Founder Emanuel Colombini described the open-air philosophy behind the new model, sharing that “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.”
Celebrating total driver engagement, power is sent to the rear wheels only via a close-ratio six-speed gated manual transmission. Drivers can toggle between three distinct driving modes to alter powertrain response, while a custom hydraulic steering setup and a Brembo braking package featuring 380 mm front and 345 mm rear discs wrapped in Pirelli Trofeo RS tyres ensure every road surface is translated straight into the driver’s hands.
1/6Full Carbon Bodywork Engineered by Maurizio Reggiani
Beneath the sculpted carbon fibre bodywork sits a chassis transformed under the technical guidance of Maurizio Reggiani, the engineering mind behind the Murciélago, Gallardo, Aventador, and Huracán.
Removing a supercar’s roof usually introduces chassis flex, but Reggiani’s team reinforced the original steel space frame with carbon fibre structural inserts to preserve rigidity without adding unwanted bulk. Going one step further, a dedicated aerodynamic study was conducted to manage airflow around the roofless cabin, ensuring wind turbulence is controlled at high speeds.
The Roadster sits on a widened track with recalibrated body proportions, giving it a lower, more planted stance while retaining the unmistakable wedge posture of the 1990s original. Despite the added reinforcements, the vehicle maintains a lean curb weight of 1,540kg with a 41/59 front-to-rear weight distribution.
1/6Tailored Cabin Built for Touch and Detail
When we look inside, the Eccentrica V12 Roadster clearly rejects modern digital minimalism in favour of tactile, high-fashion materials, and we’re here for it.
The cabin brings together smooth Connolly leather, Alcantara, anodised metal controls, and exposed carbon fibre trim, creating a cockpit shaped by feel as much as it is appearance. Because each car is created through an individual commissioning process in partnership with its owner, no two vehicles will be identical, and it’s difficult to specify what a standard car might look like because, well, there isn’t one. Still, there are some highlights worth mentioning here, including the:
- Anodised aluminium tactile switchgear and controls
- Exposed carbon fibre structural cabin accents
- Tailored Connolly leather and Alcantara upholstery
- Individually numbered build plaque reinforces its singular status
Where to See the V12 Roadster and What Happens Next
Production of the Eccentrica V12 Roadster will be strictly limited to just 19 units worldwide, with each vehicle built to order at Eccentrica’s headquarters in the Republic of San Marino.
Public viewing opportunities begin in California during Monterey Car Week:
- The Quail, A Motorsports Gathering: Friday, 14 August 2026
While official pricing has not been publicly released, industry estimates place the conversion cost well above USD$1.5 million (approximately AUD$2.25 million before on-road costs), excluding the price of a donor first-series Diablo. Deliveries will commence following its California debut, offering a lucky few collectors a hand-built bridge between 1990s supercar soul and modern engineering rigour.
You can learn more about the Eccentrica brand at the website linked below, and for more news, reviews, and features, explore our full coverage hub for Lamborghini supercars.
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