We know that the i3’s range extender is based on BMW’s C 650 scooter engine. This engine, in the scooter version is rated at 65 hp @ 7500 RPM. However, as the range extender, it is de-rated to 35 hp.

The crucial new BMW i3 will arrive next year as the first fully electric member of the 3 Series family, bringing a range of ...

Electric cars are a tough sell. They were an even tougher sell in the earlier part of this decade, which led to some automakers plopping range extenders inside their machines to ensure there was ...

The BMW i3 electric car may be the most ambitious small car of recent years, bristling with new technology and innovation. Its carbon-fiber reinforced plastic body shell rides on an aluminum platform, ...

In October, we heard that the i3 electric commuter car would be discontinued. A week later, BMW said those reports were wrong ­­­— that the i3 would live on. At the LA Auto Show this week, we spoke ...

A BMW official has confirmed that the range-extender engine to be offered as an option on the battery-powered i3 supermini will be a two-cylinder gasoline unit sourced from the brand’s motorcycle ...

The BMW i3 is the only electric car in the world sold with an optional range-extending engine to increase driving capability beyond the range provided by the battery. The "REx" option adds a small, 34 ...

A range extender in an EV isn't strictly speaking an emergency device, but it's there mostly for emergencies. A little engine meekly churns and burns, and it sends a charge to the electric vehicle's ...