A European funded research project led to the development of a revolutionary folding bike:
- 3x more compact than a Brompton, with a volume of 30 liters
- Optional electric motor
- An extremely low weight of 7.5 kg, including electric motor!
- A price going from 500 eur (basic fixie version) up to 1300 eur (electric assist version).
Official website: http://www.bike-intermodal.eu/.
First video: http://youtu.be/bWsHcDIU35o
Check also the report of the European project: http://www.hfes-europe.org/books/proceedings2013/Tosi.pdf
However, considering the complexity of the bike, I really doubt they will achieve the announced selling prices.
Furthermore, with so many hinges and articulations, the risk of getting play and noise is really high.
Last point, the small rear wheel (14"?) will not favor the comfort