[EricH]

1) YES. 2010 allowed 5 CIMs. Also, 2006 (and 2007?) had a motor type known as the Big CIM (bigger motor, but for the size not quite as much oomph as you might expect), of which type I remember 2 being allowed. (330 only used one big CIM--it powered our 2006 shooter wheel.)

2) Eh. More isn't always better. OTOH....

118's V6 drivetrain. Now THAT was a DRIVETRAIN! 4 CIMs + 2 FPs. One gearbox. Power to all 4 wheels, which were in a coaxial swerve configuration. Not sure what year... I want to say 2007. Not sure how they powered their turreting arm... But it was quite a feat of engineering.