1. The Fiesta (as far as I know) never had a CVT. The problem trans was the DPS6, a Dual Clutch box.
2. The CVT in the Maverick is not a CVT as you know them to be, with belts and pulleys. It makes use of a single planetary gearset and two electric motors to create infinite ratios. Because the motors are what drive the wheels, many people say the system feels a lot like an EV.