batery amps
 

would 10 nimhs have more amps than a 12volt car battery . i dont know which one would last longer in an electric motor cycle

oh and the motor is only 200 watts with a 12 amp contoller

No...

I think car batteries are usually ~40 to 50 Amp hours, maybe a bit more or a bit less depending on the size of the car.
10 nimh cells will give you 12 volts and 3.3 to 5 amp hours capacity depending on which cells you use.
A 10p setup (100 cells) will have similar capacity though. The nimh batteries would be a lot lighter, but probably 5 + times the cost.
Will a 12 amp controller be enough for a 200 watt motor? 12 amps at 12 volts will only be 144 watts.

i think he means a small sla... if this is still relevant
in which case 2-4p may be the same?