[dantastic]

There are quite a few companies offering EV conversions for classic cars, for example Retro Electrics [0] and EV-Evolution [1] for the 500. Personally, I'd go for the kit. I'm 6'4" though so a 500 might be a bit of a squeeze :)

[0]: https://www.retroelectrics.co.uk/classic-fiat-500-electric-c... [1]: https://ev-evolution.eu/solution/fiat-500-ev-conversion-kit/