Actor Jason Momoa, a car lover and the villain in the most recent “Fast and Furious” movie, recently had his 1929 Rolls-Royce Phantom converted to run on batteries.

He didn’t do the modification work himself, though. Instead he turned to the U.K.’s Electrogenic which prepared a bespoke solution for the Phantom.

The company, which is based on Oxford, also offers so-called drop-in kits which at present can be had for early Land Rovers, including the original Defender, plus the Jaguar E-Type, original Mini, and the 964-generation Porsche 911.

For the Phantom, the original engine, a 7.7-liter inline-6 developing between 40 and 50 hp, and driving the rear wheels via a 4-speed manual transmission, was replaced with an electric motor with a custom single-speed direct drive transmission. The electric motor generates 201 hp and draws its energy from a 93-kwh battery positioned within the existing structure of the car.

The range estimate is around 150 miles, according to Electrogenic.

The work done on the Rolls-Royce was documented by Momoa for his series “On The Roam” which is available on HBO Max and Discovery+, and according to Electrogenic was its most complex build yet.

Part of the reason was due to a desire to preserve other elements of the car that were linked to its original inline engine, like a lubrication system designed to send oil to the bushes for brake and suspension linkages, as well as other mechanical control systems.

Another challenge were the brakes. Some of the issues included the original brake servo sitting in the housing of the original transmission which Electrogenic removed as part of the conversion. The company also had to calibrate the brakes to work with a new energy recovery system.

Jason Momoa with 1929 Rolls-Royce Phantom EV conversion by Electrogenic

Jason Momoa with 1929 Rolls-Royce Phantom EV conversion by Electrogenic

Jason Momoa with 1929 Rolls-Royce Phantom EV conversion by Electrogenic

Like all of Electrogenic’s conversions, the company also wanted the modifications to be reversible.

Electrogenic found solutions to these challengers while still keeping as much of the original parts as possible, including the original cable actuators in the case of the brakes—something that was important to Momoa.

“I needed a team that would appreciate the stored history of this car while updating its technology,” he said in a statement.

This is not Electrogenic’s first Rolls-Royce conversion. The company has also converted a Silver Shadow. Electrogenic didn’t say how much a similar conversion would cost, but the price likely varies depending on the condition of the car and the upgrades specified.