ORIGINAL: Dirty_Vinylpusher
True.
There needs to be something ''telling'' the motor when and where to stop.
Also, there wouldn't be much, if any, holding power unless a pot was involved, correct?
Either way I think you'll get away with using two Quarterscale servos to steer this thing....
Since the wiper motor is probably much more capable than a small servo motor, I'd say the limiting factor for holding power is the ESC. Until it burns out, you'd get as much current as it can supply. However, it would be quite awkward to steer since the ESC is designed to control speed and not position of a motor...so dual large scale servos = great idea