Reinventing Classic Rolls-Royce with Modern Electric Innovation

Halcyon is a luxury automotive restoration company specialising in classic Rolls-Royce vehicles. Their mission is to preserve the timeless elegance of these iconic cars while integrating cutting-edge electric drivetrains. Each restoration is bespoke, blending heritage craftsmanship with sustainable technology for discerning clients worldwide.

The challenge

Halcyon faces a unique engineering challenge: modernising the electrical architecture of vintage cars. Traditional fuse and relay systems are outdated and unfit for the advanced electric drivetrain and digital features Halcyon introduces. They needed a compact, reliable and fully configurable solution to meet the demands of these bespoke builds.

The Hardwire solution

Hardwire Electronics supplies Halcyon with a Power Distribution Module that replaces every traditional fuse and relay in the original car. Because the PDM is fully configurable, Halcyon can tailor the electrical functions of each custom build. It integrates with their proprietary electric drivetrain while keeping the elegance and simplicity expected of a Rolls-Royce.

The PDM also simplifies wiring and improves reliability and diagnostics, giving Halcyon complete control over power management, in line with their vision of classic luxury with modern performance.

At Halcyon, we take classic Rolls-Royce vehicles, the pinnacle of automotive engineering in their era, and return them to that position by integrating high-voltage drivetrains, modern features, and contemporary expectations of refinement and reliability. The low-voltage electrical architecture is therefore a critical foundation of every product.

Hardwire PDM modules form the backbone of our electrical system, replacing traditional fuse-and-relay architectures with a compact and fully configurable solution. This flexibility is essential as every Halcyon commission is bespoke, with unique features and customer requirements. The ability to define system behaviour in software rather than hardware significantly reduces complexity while accelerating development.

Load monitoring, multiple CAN bus support, and programmable logic allow us to design electrical systems that are both robust and discreet, preserving the originality and usability of the vehicle. The result is a modern electrical architecture that remains effectively invisible to the owner, exactly as a Rolls-Royce should be, while enabling a more efficient and reliable development process.

The level of technical support provided by the Hardwire team has also been outstanding, and have continually offered responsive and knowledgeable assistance helping us solve control and integration problems.

Will Burdett, Halcyon & Evice Technologies