Back in the summer of 2019, Pagani introduced the 40-example Roadster BC variation of the Huayra model. At the time, there were rumors that the road-legal open-top hypercar could be the last in the series.

But almost two years later Pagani’s ultimate model is back as a track-only variant called the Huayra R. The Roadster BC used the AMG M158 engine, a 6.0L V12 twin-scroll biturbo common to the series, which in the case of the convertible produces 791 horsepower and 775 pound-feet of torque.

The Huayra R uses a 6.0L V12, but it’s naturally-aspirated, and made by HWA, a German company founded in 1999 that specializes in racing designs and has links to Mercedes-AMG. The engine can deliver 850 HP at 8250 rpm, and hit 9000 rpm before it’s all done. It is joined by a sequential gearbox, also from HWA.

The variant uses a carbon fiber monocoque, and track-specific interiors with a roll cage. It is priced at €2.6 million.