Daniel, you need to inform yourself. I don't get my racing motors from Radio Shack! My $150 neodym motors will give you 1 horsepower! On 7.5 volts! (6 cells). But the motor in my example was one of the (cheap) $45 ones. Sad that it went bad; I had it tuned perfectly, and it got overhauled after every race day.
FYI, the wiper motor, heater motor, starter motor, et al, have PERMANENT magnets in them. The starter having the better magnets, because it's in a high-heat area. the starters on old muscle cars go bad because of the heat from the headers! (been there- seen it happen). The alternator has an electromagnetic coil, hence the need for the 'energizing' circuit.
Thanks for your minimum compliment.
BTW, the rumcurrent world speed record for electric r/c boat is 121 MPH! Faster than ANY I.C.-powered (gas OR nitro) model!
http://rumrunnerracing.com/ (top-center photo)