How common are electric tricycles with two drivers!

Components i have are.
1.PMDC motor-400 w
2.40 v battery
3.and an Optional KERS mechanism
4.Weight of body 120 kg(with out drivers)
and must be human powered and electric powered!
Can you provide any suggestions or opinions where these trikes are used or will suit better and any electronic gadget additions on the vehicle so as to look more attractive!.
please do add any images if you have seen something worth good looking and efficient!

hei one more thing do trikes have speedometer installed in it? coz we are planning to install one in it!

rickharris5 years ago
Errr why? tandem recumbent bikes exist

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ply bent 3.JPG