Eccentrica Lamborghini Diablo V12 Roadster 2026: price, debut date and specs

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The original Lamborghini Diablo VT Roadster of the mid-1990s was only offered with all-wheel drive. For its new V12 Roadster, Eccentrica went the opposite way: the open-top restomod keeps the naturally aspirated 5.7-liter V12, but sends its 550 hp to the rear wheels alone through a 6-speed manual gearbox. The series is expanding too — 19 roadsters are joining the existing 19 coupes.

Rear-wheel drive is what separates the project most from the historic VT Roadster. In Lamborghini’s official Diablo history, the production open-top Diablo arrived in December 1995 and was offered exclusively with an all-wheel-drive transmission. Eccentrica, then, pairs an open body with an earlier, rear-driven Diablo philosophy.

The company says the rebuild touches more than 3,500 components. For the Roadster, the body was reworked with steel and carbon elements, the track was widened, and aerodynamics were separately calculated for the open car — without a roof, engineers had to preserve not just airflow stability around the cabin but also proper cooling for the V12.

The engine itself isn’t being turned into a modern turbocharged unit. The early Diablo’s base 5.7-liter V12 gets new camshafts, electronic throttle bodies and a different calibration. Eccentrica officially quotes 550 hp for its V12, paired with a dedicated six-speed manual with shortened gear ratios. The coupe production run also remains capped at 19 units.

The Roadster weighs less than 1,542 kg. Under the carbon panels sit reworked suspension geometry, semi-active dampers and Brembo brakes. Inside, Connolly leather, Alcantara, anodized metal and exposed carbon are used. Here, modernization isn’t about replacing the old car’s character with electronics, but about being able to drive it faster and more predictably.

That puts Eccentrica in a fairly rare niche. Modern Lamborghini is already developing a different kind of open-top V12 — Lamborghini's own Fenomeno Roadster, which pairs its naturally aspirated V12 with a hybrid system delivering more than 1000 hp. Eccentrica chooses the opposite recipe: no electric motors, rear-wheel drive, and the driver still has to shift for themselves.

A similar pull toward “analog” supercars persists outside the Lamborghini world too: Gordon Murray Automotive kept a naturally aspirated V12, rear-wheel drive and a manual gearbox in the Le Mans GTR. For Eccentrica, the difference is that the starting point is an existing car from the 1990s, which is effectively taken apart and engineered back together. The company itself says more than 3,500 components have been substantially reworked.

The public debut of the V12 Roadster is set for August 14 at The Quail, as part of Monterey Car Week 2026. Several key unknowns remain ahead of the reveal — above all, price, exact weight and the open version’s performance figures. But the technical idea is already clear: Eccentrica isn’t copying the factory Diablo VT Roadster, it’s building the open Diablo the mid-1990s production car actually never was — rear-wheel drive, with a modern chassis and its naturally aspirated V12 preserved.