The one that is not a hub. I agree, you want a zero motorcycle, or equivilant.
But currently the most powerful hubmotor I know of is from Greyborg. http://www.greyb.org/greyborg-warp.html
This doesn't seem to be a selling webpage, but this is the man. He's in Croatia.
Here is the site for the guy selling the motor in the USA, if you are in USA. http://greyborgusa.com/
If nothing else, that site has the information you want on the most powerfull hub motor that fits a bicycle. This one should wheelie.
But one more time, the performance you seem to want is found on chain drive electric motorcycles or bikes.
THE LIPO RULES. NEVER ABOVE 4.3V NEVER BELOW 2.7V DON'T PUNCTURE
Ideal charging /discharging range for Lipo, 3.65v minimum 4.1v maximum
See battery technology section, FAQ thread at the top of the page for lipo noob info.