If the Bentley Continental GT Convertible is a little too mainstream for your tastes, you’d better listen up as the company is reporting working on a limited edition roadster that will draw cues from the EXP 100 GT concept.

Autocar reports the model is being developed by Mulliner and will become the division’s first coachbuilt car since the Bentley State Limousine was created for Queen Elizabeth II in 2002.

Little is known about the car at this point and it reportedly hasn’t been approved for production yet. However, it could arrive in 2021 and be positioned as the “ultimate open-cockpit sports tourer.” The model is said to be a “two-seat barchetta-styled tourer” which lacks a roof and features styling cues from the EXP 100 GT concept.

Also Read: Bentley EXP 100 GT Concept Swings By Pebble Beach

The car is also expected to use sustainable materials just like the concept. There’s no word on specifics at this point, but the EXP 100 GT had biodegradable Gainsborough cotton damask textiles and copper infused riverwood that was 5,000 years old.

While the EXP 100 GT concept was electric, the roadster will reportedly be powered by a familiar 6.0-liter W12 engine. There’s no word on whether or not the limited edition will receive a power boost, but should have at least 626 hp (467 kW / 635 PS) and 664 lb-ft (900 Nm) of torque. Given the weight loss from ditching the retractable roof, the model should be faster than the Continental GT Convertible which can run from 0-60 mph (0-96 km/h) in 3.7 seconds before topping out at 207 mph (333 km/h).

Production could be limited to 12 units or less, and it’s believed the company is already talking to potential customers. However, they be in for some sticker shock as the car might cost more than £1.5 ($1.9 / €1.7) million.