Coachbuilding is largely a thing of the past, but the one-off Rolls-Royce Silver Spectre Shooting Brake is going up for auction next month.

If the model looks familiar, it should as we covered the car when it was introduced by Niels van Roij Design in 2020. This particular shooting brake was intended to be one of seven produced, however this was apparently the only car ever completed.

That ups the exclusivity factor and it’s worth noting the model started life as a Rolls-Royce Wraith. It was then shipped to Belgium, where Carat Duchatelet spent approximately 18 months and over 2,500 hours transforming the coupe into a bespoke shooting brake.

More: Niels Van Roij Design Gives A Closer Look At The Silver Spectre Shooting Brake

This process wasn’t easy or cheap as the build is said to have cost more than $324,615 (£256,426 / €300,000). That isn’t pocket change, but the car was designed to recall the “heydays of shooting brakes in the 1930’s.” As part of this effort, the model was outfitted with a flowing carbon composite roof and a unique greenhouse that sports a satin silver surround.

The interior largely carries over from the Wraith, but the Silver Spectre has a unique “Infinity Starlight” headliner that houses nearly 2,000 lights. Of course, the most noticeable change is the spacious cargo compartment that is leather lined and has a hidden storage area beneath the floor.

Power comes from a twin-turbo 6.6-liter V12 that has been upgraded to produce 690 hp (515 kW / 700 PS) and 664 lb-ft (900 Nm) of torque. This could enable the model to be faster than the Wraith, which could run from 0-60 mph (0-96 km/h) in 4.4 seconds before hitting a limited top speed of 155 mph (250 km/h).

Regardless of how fast the shooting brake is, the Silver Spectre has 17,965 km (11,163 km) on the odometer and is expected to sell for $275,000 – $325,000 (£217,181 – £256,673 / €254,082 – €300,278). That would be a relative bargain, but we’ll see how accurate RM Sotheby’s estimate is on March 9.

Pictures credits: RM Sotheby’s