[dtengineering]

As you add CIMs the torque bottleneck shifts to either the amount of current the battery can supply, or the amount of current the main breaker can handle. While you can abuse the batteries a bit, the consequences of tripping the main breaker are significant.

I'm not sure, exactly, what the magic number of CIMs would be before it becomes pointless to add more... but I'd bet that you are within +/- 1 motor.

Perhaps a shifting gearbox with two or three CIMs would actually provide both better acceleration AND a higher top speed.

Jason