BMW unveiled a fourth new model in its "i" range, underscoring the carmaker's intentions to expand the new brand it is officially launching next year.

The BMW i8 Concept Spyder is a plug-in hybrid powered by an electric motor and a gasoline combustion engine which, together, provide a combined output of up to 354 bhp.

BMW said the i8 concept will feature a new generation of driver assistance systems, which include camera-based proactive collision warning, a parking assistant and a traffic jam assistant.

Various connectivity functions provide a seamless link between the i8 and its owner, BMW said. Through the use of a smartphone, for example, a driver can locate his car, find a nearby charging stations and check his vehicle status.