I agree, an EV conversion of an E-type for example, takes the soul of the car out of it. What I do like is taking an old, inefficient, pedestrian car and turning it into something suitable for driving around town. Take this Citroen 2CV for example - no more dinky aircooled flat twin. It's a 2EV now! I would love to do something similar with a Beetle if/when I move back to Canada.
2EV:
Original:

* This one's got a BMW twin, apparently.
Another example: