I don't even think it's efficient in that way either though.

I mean, sure, you can get in your car and start driving faster. But then you likely have to sit and wait at traffic lights, sit in traffic if you're anywhere in a city, and find parking.

That just seems less efficient than getting to the nearest bus stop or train station and not having to deal with any of the trouble of driving. Of course, as long as the city is designed well, which you can't find in the US.