Electric and hybrid vehicles made a lot of news at this month's International CES in Las Vegas and the big auto show in Detroit. The Nissan LEAF and General Motors' Chevy Volt have sold more than any other electrified vehicles, but Ford (F 0.19%) and others are working to narrow the gap.

Have you ever been in a hybrid vehicle? Do you know how it saves energy and achieves great mileage?

At CES, Motley Fool analyst Rex Moore was able to take a ride with Ford's Mike Tinskey in a 2013 Fusion Hybrid. In part one of this two-part test drive, Tinskey goes over the basics of hybrid technology.