This is a topic that worked its way into my e-mail.  Soon you will be able to order an electric motor/transmission package complete with assorted mounting points for your special interest car.  The package is not much bigger than a present day transmission, which allows you plenty of room to place batteries of your choice. Batteries would add weight, which would necessitate beefier suspension, and possibly create handling issues.  Here’s the link:

https://jalopnik.com/finally-an-electric-crate-motor-you-can-drop-into-your-1839168140