The 24 Hours of Le Mans is upon us, and Porsche commemorated its third consecutive year in the World Endurance Championship (WEC) by turning its endurance prototype into a road-legal production vehicle, just like in the old days.

The 963 RSP is the modern-day equivalent of what Porsche did to its 1970s Le Mans winner, the 917, for three distinct customers. The three letters stand for Roger Searle Penske, the owner of Team Penske.

His team competes in the WEC and the IMSA WeatherTech SportsCar Championship, achieving a total of 13 wins and one constructors’ win with the German brand in the LMDh era.

On the outside, its Multimatic-engineered carbon-fiber and Kevlar body panels are painted in Martini Silver, rather than being wrapped, and the bare interior is stitched tan leather and Alcantara. This minimalist combo replicates the unit owned by Italian bobsledder and Martini founder Count Rossi.

Nevertheless, its heart remains the 4.6-liter twin-turbocharged V8 engine producing 671hp as its racing equivalent, paired with a 1.35kWh battery pack—standard on every LMDh car. However, it was reengineered to accept regular gasoline—instead of racing-specific fuel—for Penske’s convenience.

However, Porsche isn’t planning on producing any more units other than for the famed team owner. We’ve seen this kind of project in recent times from Glickenhaus, Vanwall, and Isotta Franchini, but for it to come from an iconic name in racing is what makes the 963 RSP special.