[bostik]

> This means that a 1500kg car is forced to pack an additional 540kg to be able to store energy.

I think this is the wrong angle to look at the issue.

A 2100kg EV requires 25% of its total mass to support the energy storage, generation and transfer in order to provide a range and performance profile people are generally happy with.

What is the fraction for a new ICE vehicle with similar profile? The combustion engine weighs... how much? Then add the weight of a 60% full fuel tank to allow for roughly the average deadweight haul between refills. Then include the weight of the exhaust system.

And finally, we have to include the weight of the drivetrain. How much of the total weight in an ICE is dedicated to power transfer from engine to wheels? How much in a modern EV?

Energy storage and generation is only a part of the picture, getting it to the wheels is what makes a car actually perform its function. We should include these numbers to get a meaningful comparison.