I have been searching the web for all kind of interesting stuff and found many good things.
Lately I have been following thread of this forum
http://endless-sphere.com/forums/index.php
This forum is a gold mine for people studying and making electric vehicule.
When searching, I found this thread
http://endless-sphere.com/forums/viewtopic.php?f=2&t=6892
and here is the specific post to download the software.
http://endless-sphere.com/forums/viewtopic.php?f=2&t=6892&start=75#p119810
You can also make some graph that can be useful.
You can enter all your info about vehicule to get some pretty good result. It give a good idea on the speed you can achieve. I am still skeptic about the distance I can go with the scooter compare to what the simulator told me. That is something I will be testing when I get my new motor.
Member swbluto is the creator of the simulator you just saw. He is also making a electric scooter.
You can follow the thread here: http://endless-sphere.com/forums/viewtopic.php?f=12&t=7638