Porsche is almost done with its development of the new-generation 991 RSR. The new 911 GT3 RSR will make its racing debut on April 14th and will be run exclusively by the Porsche AG Team Manthey works squad at the 24 Hours of Le Mans and in the World Endurance Championship (WEC).

Porsche is now finished testing the car on the Sebring International Raceway in Miami, Florida and it looks like the company is pretty excited about how the testing went. Until the race season kicks off in Silverstone, Porsche will conduct some final tests on other race tracks to be sure that the GT3 RSR is truly ready for the World Endurance Championship season.

Porsche revealed no details on the RSR just yet, but rumors suggest it will get ultra-wide fenders, a sharp aerodynamic package and, of course, extra air intakes for better engine cooling. The model will be powered by the same 4.0-liter six-cylinder boxer engine found in the standard GT3, but with an improved output.

Full details will be unveiled pretty shortly, stay tuned!

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