A restored 1991 Jaguar XJR-15 is expected to sell for between $1.2 million and $1.4 million when it crosses the auction block next month.

The XJR-15 is famed for using the same carbon fiber monocoque as the Le Mans-winning Jaguar XJR-9. It also sports carbon fiber and Kevlar composite body panels and has the same suspension as the XJR-9 that includes fabricated wishbones and horizontal pushrod-spring dampers at the front and coil springs at the rear.

Slotted beneath the sleek bodywork of the XJR-15 is a 6.0-liter naturally aspirated all-aluminum V12 with a Cosworth forged crankshaft and connecting rods, aluminum pistons, and a unique fuel delivery system with Zytec electronically controlled sequential fuel injection. This engine worked alongside a six-speed TWR transmission with straight-cut gears and an AP triple-plate carbon clutch on the race car.

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Jaguar only ever built 53 examples of the XJR-15 and this is one of 27 road-legal models. It is slightly different from the race car as it uses a five-speed manual and was originally used for aerodymamic studies and testing of hybrid energy recovery systems by a former Nismo Racing engineer.

The car formerly resided in Australia where it was restored by Bespoke Motors in Melbourne back in 2015. Numerous work has been done over the past four years on the car, including a bare-body repaint in the original dark blue color at a cost of over $15,000. All fluids were also recently changed, while the air-conditioning system was recharged, the carbon clutch was re-shimmed, and new belts, gaskets, spark plugs, and tires were installed at a cost of more than $20,000.

The XJR-15 is being sold by RM Sotheby’s with a number of spare parts, including the original rear body panels, a Zytec ECU, and a second set of matching seat cushions that allow drivers as tall as 6’5” to fit behind the wheel.