Enlarge / Porsche knows the road to a Le Mans win involves tens of thousands of miles of testing. (credit: Jonathan Gitlin)

Porsche provided flights from DC to Daytona Beach and back, plus a night in a hotel so we could attend its private 963 test. Ars does not accept paid editorial content.

DAYTONA BEACH, FLA.—Car companies like to keep new models far from prying eyes during the development process. That goes doubly so when they’re going racing, like Porsche is with its new 963, which made our invitation to watch the car test on Friday, while still in development, a rare chance to watch expertise at work. Doubly so considering that Porsche's partner with the 963 is Penske Racing, an organization that has racked up more than 600 wins across a range of disciplines over the past 56 years.

The 963 has been built to win the 24 Hours of Le Mans and endurance races like it and will compete next year in IMSA's new GTP category as well as the FIA WEC's Hypercar class. Built to a rule set known as LMDh , it's more of a collaboration than the Porsche crest on the nose might lead you to expect. Multimatic in Canada provides the car's carbon-fiber spine, or chassis. Xtrac supplies the transmission, Williams Advanced Engineering provides the lithium-ion traction battery, and Bosch is responsible for the electric motor/generator unit, all three of which are tightly packaged together.

But Porsche has built the twin-turbocharged 4.6L V8, which traces its roots back to the mid-2000s RS Spyder race car, with a road-going derivative also found in the 918 Spyder hypercar. Power is capped at 680 hp (500 kW) for the internal combustion engine and hybrid system working together and is measured by sensors to ensure no one gets over-creative.

Enlarge / The new Porsche 963 sports prototype made its world debut at this year's Goodwood Festival of Speed in England. (credit: Porsche)

Last month, Porsche used the Goodwood Festival of Speed in the UK to formally debut its newest model. It's not another 911, nor a new SUV; it's a hybrid sports prototype designed to win on track here in the US and at Le Mans. You can tell the car has big shoes to fill just by looking at its name—Porsche is calling the new racing car the 963 because it's the spiritual successor to the legendary 962 that dominated sports car racing in the 1980s.

Unfortunately, Goodwood took place at the same time as my vacation at Watkins Glen in New York for IMSA's six-hour race, so Ars wasn't able to see the 963 run in person. But I was able to sit down with a pair of Porsche's factory racing drivers to find out a bit more about the new car.

Mathieu Jaminet and Matt Campbell are currently contesting the IMSA WeatherTech championship in a GT car—a Porsche 911 GT3R that started life on the same production line as the road-going 911s. But next year, the pair will be among the Porsche factory drivers who have been chosen to campaign the faster, more complex 963 here in the US or in the World Endurance Championship (WEC).