The useof a continuously variable transmission(CVT) with an integratedenginecontrollerallowsgreatfreedomofchoice of the engineoperating point to deliver the powerdemanded by thedriver.
The C-Max Energi has an EV mode button on the center stack that lets the driver choose between three modes: electric-only driving, normal hybrid mode (which blends electric and gasoline enginepower as appropriate) or EV-later mode, which reserves the battery pack power for later use.