The Piaggio Zip & Zip - one of the most incredible Scooters out there boasts
the only known multi-fuel engine. You start off with gas. When the
gas runs out, then switch over to the thermal system. When the thermal
system runs out, switch over to the battery system. This is about
the most complete use of all the energy produced by an engine yet.
The thermal system traps heat produced by the exhaust and provides
the energy through termal differential fields. With this system, the
engine produces ZERO EMISSIONS. Absolutely guaranteed to be completely
environmentally friendly worldwide.
