Heck we don't even have "reliable" data for the 650. Magazine tests have reported 0-60 times ranging from 5.8 seconds to 7 seconds - quite a variance. Maybe one of them had a 90 lb test rider & another had a 350 lb test rider? Uphill vs downhill, headwind vs tailwind - I dunno. But I am convinced that they don't try for best numbers nearly as hard with a scooter as they do with a Hayabusa or a ZX-10.