The acronym xEV stands for what?

• A. External electric vehicle
• B. Extreme electric vehicle
• C. Electronic vehicle
• D. Electrified vehicles containing a high-voltage system

Answer: (D)

xEV describes vehicles that use electricity to power the propulsion and that include a high-voltage system. This category includes battery-electric vehicles, plug-in hybrids, conventional hybrids, and other electrified drivetrains that rely on a traction battery or similar high-voltage energy source. The emphasis is on two elements: electrified propulsion and the presence of a high-voltage system, which is the safety-relevant feature in this context.

Other terms don’t fit because they don’t reflect the standard meaning: a nonstandard “external” electric vehicle isn’t used in the industry; “extreme” electric vehicle isn’t a recognized term; and “electronic vehicle” doesn’t convey the electric propulsion or the high-voltage aspect.