just been for a spin on a kawasaki ninja. it was my first time on a bike and JESUSMOTHERf**kINGCHRISTALLMIGHTY it was pretty darn quick. it got to 140mph quicker then my car gets to 50!!! the guy who took me out said he didnt unleash it properly cos it was my first time and that my weight on the back was getting the front end to lift off on full throttle.
as for cars, the quickest thing i have been in is a very rare audi S6, we were four up and killed an 225TT of the lights, i know a TT isnt much but the S6 puts u back in your seat!!
As for acceleration, my mates(also very rare!!) 200bhp+ golf G60 aint half bad either. Traction permitting!!