RM Auctions has announced plans to offer the 2004 Mustang GT-R Concept at their Ford-only event in Monterey, California. It is expected to sell for $250,000 to $350,000.

RM Auctions has announced plans to offer the 2004 Mustang GT-R Concept at their Ford-only event in Monterey, California.

Originally introduced at the 2004 New York International Auto Show, the GT-R Concept was a tribute to the Mustang's 40th anniversary. It features a Tremec T-56 6-speed manual transmission, a Winter's race-spec rear differential, a Ford Racing "Cobra R" heavy-duty clutch/flywheel assembly, a metal matrix composite aluminum custom driveshaft, Brembo brakes, and 20-inch wheels outfitted with Pirelli racing slick tires. Power is provided by a 5.0-liter V8 engine, with 440 hp (328 kW / 446 PS) and 400 lb-ft (542 Nm) of torque, which still runs. Expected to go for $250,000 to $350,000, the GT-R Concept isn't DOT or EPA certified and can't be registered for use on public roads.

Other notable vehicles up for auction include the 2004 Lincoln Mark X Concept (estimated at $200,000 - $250,000), the 2003 Ford Supercharged Thunderbird Concept (estimated at $175,000 - $250,000), and the 1962 Lincoln Continental "Bubbletop" Limousine (estimated at $500,000 - $750,000) used by President John F. Kennedy.

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