feddz.de: small motor cycle L1E. EU approval / ministry of transport approval, does not require TÜV inspections. Insurance required as a small motor scooter, helmet requirement. Free from vehicle registration and taxation.

http://biciclete-electrice.com/iBikes/Bultaco-Brinco

The projected/estimated life of a Lithium-Ion battery is approximately 3 years from production. LiFePO4 life expectancy is approximately 5-7 years but its energy density is lower than normal Li-Ion cell (Li-Co). According to JB Straubel, lithium-ion storage capacity increases by a factor of two, in general, every ten years. He also stated that he personally witnessed an improvement of 40% in only four years, between the release of the Tesla Roadster and the Tesla Model S.
dtbattery: ”For the normal lifepo4 cells, the energy density is 115 wh/Kg, for other Li-Co-Mn-Ni-O cells the energy density is around 180 wh/kg.”
forum comment: battery will double their capacity every 4-5 years.. So what’s the point in buying now a battery that costs…