The BMW C1-E, prepared for the European Safer Urban Motorcycling (eSUM), was designed to represent safe and environmentally friendly vehicles of the future.

Like the C1, which was produced 2000-2003, the concept has a number of safety features such as a roll-over bar, energy-absorbing nose to soften head-on collisions and seat belts.

The C1 came in 124cc and a 176cc models, both with Rotax engines and continuously variable transmission. The C1-E uses an electric motor from Vectrix powered by a lithium-ion battery, though an alternate version could be equipped with a low-emission combustion engine.