Using Multiple Kinds Of Motors

[davidthefat]

Since some motors have a higher torque, others have higher speed, isn't it a good idea to use both to drive the same robot? My team has never attempted this (or that I am aware of), would it be a good idea? According to the First Wiki, the Fisher Price motor has a higher speed, significantly higher. The CIM has a significantly higher torque. Now isn't it possible to make a mechanism that will switch the motors? Switching the motors to fit the needs of the situation. Car manufactures do it, for example the hybrid vehicles. They use both electrical motors and the traditional engines. They must have a mechanism to switch gears.

I have an idea for a mechanism that uses pneumatics and gears, but does not seem very reliable.

Now would it be really worth the trouble to make a mechanism to switch motors? Does the benefits outweigh the drawbacks?

Pros:
Best of both worlds


Cons:
Weight
Mechanism can be the weak point (more moving parts mean more chances of breaking down)
Seems like a redundant way to do something while gears ratios can be adjusted