A yes B So? That just means their car needs to go on a diet. If those extra kg got us something then you might have a point. C The point is to maximize dist

A yes B So? That just means their car needs to go on a diet. If those extra kg got us something then you might have a point. C The point is to maximize distance traveled per energy used while providing decent range and carrying capacity. The point isn't to build systems that have a lot of downsides(complexity and weight) for no benefit.