There's a few annecdotal whispers you pick up here and there about 300+ kW GTS/GT-R's that take down some largish bikes in certain situations.
You can guess where 4wd and perhaps the ability to drop 300kW to the road on four A4 sized sheets of paper as tyre contact patches is better than say 100kW on an area the size of a cigarette packet.
Say an 300kW GT-R on a slick winding road vs. an average bike like a 75kW Honda VFR-750FN... I can see which vehicle is going to keep ahead.
4 x 245/40/17 tyres vs. a single back rim.... I bet on the Skyline.
As always, drag racing bikes is a dangerous sport, even more so than drag racing other cars.
T.