> What I wish companies like Tesla would do is define some standard form factors for things like batteries The Fiat Centoventi (aka the electric Panda) is clos

> What I wish companies like Tesla would do is define some standard form factors for things like batteries The Fiat Centoventi (aka the electric Panda) is closest to what you want for batteries. It has a battery system with modules which are easy to install and remove. The idea is you can buy the battery capacity that suits your needs and then you can buy or rent extra capacity as needed: https://www.drivingelectric.com/fiat/933/fiat-centoventi-concept-previews-future-electric-panda https://www.drivingelectric.com/fiat/933/fiat-centoventi-con... Being able to rent some extra battery capacity for the occasional road trip is an interesting idea. And the modular system makes it easy to replace modules that fail over time.