The curb weight is expected to be 3417 pounds. The power to weight ratio should place performance of the GT very close to the base Porsche 991 Turbo. A Black Series version will likely go head to head with the Turbo S or 991 GT2.
The M178/M179 4.0 liter V8 will be based on Mercedes four-cylinder architecture but doubled for twice the displacement and cylinder count. The advantage here is a lightweight motor that can be placed further back and lower in the chassis to achieve 48/52 weight distribution.
The car will come standard with 265/30 front rubber and 295/30 rear rubber. The width will be close to the SLS but it should be lower and also shorter by approximately 140mm.
The expected date for the official reveal is during the German Formula 1 Grand Prix next year. Can Mercedes take on the 911 Turbo? It sure looks like it.