A peak at other Fiat 500 motors

 Researching electric conversion for Fiat 500 I've been able to track down quite a few examples, some dating back to the early days of this vehicle some others are part of recent commercial conversion kits.

The first ever made 1967.

An early conversion.

This I believe is an upgrade of the above.

A Newtron conversion

An Electricclassiccars kit

Possibly another Newtron

NLelectric kit

There is no motor in this picture but apparently this 500 (Bambina) was fitted with a Vampire jet aircraft starter motor back in the 1990.

And here I've tracked down how the motor on the jet engine looks like.

https://commons.wikimedia.org/wiki/File:Rolls_Royce_Goblin_II_numbered_cutaway.jpg

I'll try to add more as I find them.