I'm not very concerned with energy efficiency, at least when it comes to moving people around, honestly I think that's pretty fine.
I'm far more concerned about a more precious resource in a city: space.
Cars an atrocious, inefficient, deadly use of space. They simply do not scale to the densities needed for the amenities of a city. Sure, maybe 5% of the population can use them, but that 5% does it at a huge cost of space and safety for the remaining 95%, and greatly detract from what can be accomplished in a city otherwise.
Personal car transport is only realistic for low density, low amenity living with access to few people. Rather than cars being a gateway to freedom, their space greediness end up hemming in everyone by taking up far too much space, at least when you want a city with high culture and high access to lots of people and things.
I'm far more concerned about a more precious resource in a city: space.
Cars an atrocious, inefficient, deadly use of space. They simply do not scale to the densities needed for the amenities of a city. Sure, maybe 5% of the population can use them, but that 5% does it at a huge cost of space and safety for the remaining 95%, and greatly detract from what can be accomplished in a city otherwise.
Personal car transport is only realistic for low density, low amenity living with access to few people. Rather than cars being a gateway to freedom, their space greediness end up hemming in everyone by taking up far too much space, at least when you want a city with high culture and high access to lots of people and things.