Theon Design is celebrating its 10th anniversary with the unveiling of its latest bespoke Porsche 911 (964)-based Coupe, developed over 18 months in close collaboration with a UK client.

Finished in Oak Green Neo Metallic with champagne detailing, the commission combines classic 911 styling with contemporary engineering.

Its naturally aspirated, air-cooled 4.0-litre flat-six produces 419bhp and 322lb ft of torque, delivering 0–60mph in approximately four seconds.

F1-grade carbon-fibre bodywork, a lightweight wiring loom and carefully considered engineering refinements help achieve a kerb weight of just 1,150kg.

Designed specifically for British roads, the car features a G50 five-speed manual gearbox, selectable engine maps, TracTive semi-active dampers, bespoke spring rates and 17-inch wheels with Michelin Pilot Sport tyres.

The result is a compelling balance of precise handling, ride comfort and traditional analogue engagement.

Alongside the new Coupe, Theon has confirmed that the first customer example of its high-performance Theon R has entered build. Producing more than 500bhp from a 4.0-litre flat-six, the R targets a kerb weight below 1,000kg.

The company has also launched an online configurator covering its Coupe, Targa and R models, while strengthening its North American presence through a concierge partnership with Humble House.

Founded in 2016 by Adam Hawley and Lucinda Argy, Theon Design continues to champion its philosophy of enhancing the original 911 without compromising its character.

Coupe commissions start at £435,000, with each bespoke build taking approximately 18 months.