This visualization is space efficiency.

Obviously cars have terrible energy efficiency. The most efficient vehicle is a bicycle, since exercise is good for you it's arguably negative energy usage.

As for time efficiency, you have to consider car dependent development as a package. Everything spreads out, so overall there may not be an improvement in time efficiency, especially when you factor in the longer travel time of people not in cars. You could even consider the time spent working to pay for the car, or the time lost from people killed by the car, and I doubt cars would come out particularly time efficient then.

And usage of space. And money, at least if you include all the externalities.