This odd creation dubbed the Intermeccanica Murena 429 GT, is probably a completely unknown quantity to many readers and will be auctioned off by RM Sotheby’s during its Palm Beach auction on March 20-21.

If this is the first you’ve heard of the 1969 Intermeccanica Murena 429 GT, we won’t blame you as most people probably haven’t either. At the time of its unveiling at the 1969 New York Motor Show it was promoted as the “fastest wagon in the world,” Supercars reports, borrowing U.S. technology while featuring an eye-catching body from Intermeccanica of Italy.

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Powering the Murena 429 GT is a 429 cubic-inch (7.0-liter) V8 engine from a Ford Thunderbird that left the factory mated to a three-speed automatic transmission. Road & Track had the opportunity to test out the car back in 1970 and were able to accelerate it to 60 mph (96 km/h) in 7.5 seconds and down the quarter-mile in a respectable 15.5 seconds. All up it apparently had 360 hp at 4,600 rpm and 480 lb-ft (650 Nm) of torque at 2,800 rpm on tap, decent figures for the day.

There were only ever 10 examples (or 11, depending on the source) produced and this is one of them. It is painted in a bright shade of red and is certainly one of the most intriguing Shooting Brakes you’re ever likely to see. The front end is dominated by a black grille and four large circular headlights while the rear looks drop-dead gorgeous thanks to simple round taillights and turn signals and a spacious rear canopy and large rear window.

The car will be offered without a reserve.

Photo credits: Corey Escobar/RM Sotheby’s