Originally posted by andsetinn
Actually if you don't change anything else on the car just drop 2 cells you'll have longer run times, the motor will draw less amps because of lower voltage and the car will weigh less. The motor will run cooler, etc. Last, but not least, the batterypacks will be cheaper. 
Longer run time?
Motor draw less amps due to lower voltage?
Motor will run cooler?
DO you have any idea what your talking about?