If a GT that we wanted to see this year in Le Mans (beyond the Viper SRT), this is Porsche 911 RSR the new generation Porsche 991. GTE variant of this rear-engined sports today made his first public appearance at the Sebring circuit, where he out walking his wide body, its vented wheel arches on the bottom, huge flat diffuser, its double tail central exhaust.
The new racing machine takes the skeleton of the new Porsche 911 GT3, which should be presented at the Geneva Motor Show in two or three weeks.
Not know the specifics of your engine, and we do not know the basics of the GT3 although a displacement of 3.8-liter or four more than possible. The dual pillar mirrors do seem a nod to the production model.
We call attention to the air intakes blind in front of the rear wheel arches. This is the new grand master candidate races like Le Mans (if you leave Corvette and Ferrari), and tests such as the 24 Hours of Nürburgring where run very burdened, as the organization rather help GT3 cars.