BMW will launch a mid-range MPV aimed at larger families in 2015, to complete its ‘Project i’ series of upcoming electric vehicles.

Although the first ‘i’ model — the i3 — hasn’t even hit the roads yet, BMW executives are already planning to augment the range.

Essentially, the proposed i5 is designed to compete with models such as the recently launched Toyota Prius V, an enlarged version of the hybrid bestseller which can seat up to seven passengers and offers plenty of cabin space.

It could be built on the platform of the i3, an all-electric hatchback concept due in 2013 which features a 125kW motor, a top speed of 150 km/h and an optional range extender which uses gas to ensure the it doesn’t run out of juice.

The model will be priced above €50,000, giving it a considerable premium compared to the Prius V, which starts at €23,000.

Its second model, the i8, is a high-performance sportscar slated for release in 2014.