i want to make an electric vehical, problem is i cant decide on a proper motor. the vehical can weigh upto 300kgs so what sort of motor do i need to propel it at decent speeds. i can use a gearbox attached to the motor so the torque part can be solved to some extent. can u people send me some links for high rpm and torque AC and DC motors? somewhere in the 10 - 20 hp range. what sort of batteries will i need and will it be better to use AC or DC motors??