Lamborghini
Sián Roadster (2020)

Why it matters

The Sián Roadster is the open-topped version of the Sián coupe, built on the Aventador platform. Only 19 were planned, and all were reported sold at announcement.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Photos

Exterior, interior and detail photos with their licences.

• Lamborghini Sián Roadster (2020) (Wikimedia Commons search)
  Photo: pelican-actor · CC BY 2.0
• Lamborghini Sián Roadster (2020) (Wikimedia Commons search)
  Photo: Alexandre Prevot from Nancy, France · CC BY-SA 2.0

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

Car and Driver expects the price to be almost certainly a seven-figure sum. Lamborghini calls the car always open to the sky, though the magazine saw no roof at all.

The roadster keeps the coupe's hybrid system. A 48-volt motor in the gearbox adds up to 34 hp to the naturally aspirated 6.5-litre V12, which the magazine gives as 774 hp. A supercapacitor takes the place of a battery.

The claimed 0-62 mph time is under 2.9 seconds, slightly slower than the coupe.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Sources

Each number links to the exact facts it supports.

1. 1
   Lamborghini Sian Roadster (2020): Offener Wild-Hybrid Level C

   • 19 Sián Roadster cars, all sold at announcement

   Accessed 2026-11-13
2. 2
   807-HP Lamborghini Sián Roadster Revealed, but It's Already Sold Out Level C Car and Driver

   • the naturally aspirated 6.5-liter V-12
   • 807-HP Lamborghini Sián Roadster
   • single-clutch automated-manual transmission

   Accessed 2026-11-13