Power dictates the performance of an engine. It's measured in horsepower (bhp) or metric horsepower (PS). More is better.

The load-carrying ability of an engine, measured in Newton-metres (Nm) or pound-foot (lb-ft). More is better.

Fast charging typically refers to direct current (DC) charging from an EV charge station, and is generally quicker than AC charging. Not all fast chargers are equal, though, and this depends on their rated output.