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The Pusher trailer was being trialed. The Prius already had 48V 100Ah extra batteries installed and is operating as a PHEV using an Enginer DC-DC converter which can suppliment around 4Kw enough for 36km/hr in EV while the batteries hold out.
It was easy to utilize the already battery enabled Prius to do the testing. The aim at that time was to use the Estima Electric motor, 6:1 gearing and differential assembly either to replace the IC in the smart Car, or to use as a Electric pusher in some way.
Yes I agree entirely with the suggestion that a small range EV with a method of extending the drive when required is a good concept, and Batteries are not only expensive, b ut if the battery cost is factored in as a forward price for your running costs, you are hard pressed to match a Prius C.
Idealism and Reality are in conflict at times.
George S
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