If you're unfamiliar with Delta4x4, the business has worked on a number of unusual projects, including an off-road Porsche 911 and a portal-axled Suzuki Jimny.
A brush bar with spotlights, skid plates, a snorkel, and a roof rack with rooftop tent were all included in the Cullinan's off-road package.
Although it appears to be a step down from the sumptuous interior found immediately below, it is required for overlanding vehicles.
Delta4x4 also added bigger fenders to encase 20-inch wheels with 33-inch Mickey Thompson off-road tyres (which are actually smaller than the 22-inch wheels available on the original Cullinan).
The business also provides a 3.15-inch lift package that raises the Cullinan 5.9 inches higher than stock when paired with the bigger tyres.
There were no obvious changes to the powertrain.
A 6.75-liter twin-turbocharged V-12 with 563 hp and 627 lb-ft of torque sits behind the traditional Rolls-Royce Pantheon grille, mated to an 8-speed automated transmission and all-wheel drive.
The stock version has a governed top speed of 155 mph, however the upgraded version's overlanding gear may reduce that performance slightly.
The total cost of the conversion is 150,000 euros ($163,222 at current exchange rates).
This does not include the cost of a Cullinan donor vehicle, which starts at roughly $300,000 new.
The lift kit alone costs $16,280, while the expanded fenders are priced at $15,195.