Meh, a super-expensive Carrera GT that accelerates only a little bit faster (due to a lack of traction I presume), has an unobtainable-pretty-much-everywhere-that-isn't-a-highspeed-test-track top speed, and most likely violates the delicate driving balance and poise the car possesses stock...?
Erm, I think you've got a typo or a misunderstanding...the 917 was a deadly flat-12 racecar from the early 1970's...

This was the deadliest one

:
1973 Porsche 917/30
Engine Type: Air-cooled twin-turbo flat-12, no intercooler
Displacement: 5374 cc
Power: 1100 hp @ 7800 rpm
Torque: 1128 lb. ft. @ 6400 rpm
Layout: Mid Engined / Rear Wheel Drive (no rear differential)
Transmission: Type 920 4 Speed Manual
Body & Frame: Aluminium tube spaceframe, plastic body
Weight: 849 kg / 1872 lb
0-60 mph: 2.10 sec
Top Speed: 386 km/h / 240 mph
Quarter Mile: 7.30 s