> A two hour commute is much less of a problem if you can be a bit productive.

A two hour commute sounds absolutely unbearable to my ears. I guess it makes sense if you are able work for 4 hours daily inside a train or something, but that's already half of the workday, i.e. you might as well just work from home.

I had about a 90 minute commute--each way--for about 18 months. Trust me; it's not nirvana even if it was by rail/subway except for about a 7 minute drive to the station. Wasn't sustainable long-term--which dot-bomb ensured it wasn't. Latterly, I was about 2 hours each way to go into our city office which I really didn't enjoy doing.

If you could reliably work from your autonomous vehicle for two hours you might be able to include that as part of your work day, e.g. 2 hours working on the ride in, 4 hours in the office, 2 hours on the ride home for the full 8 hours. If not, you could fall asleep in the backseat, watch some TV shows, or... you know. Just make sure your windows are tinted. In any case, I'd definitely take a 2 hour "do whatever in the backseat" commute over an hour-long "pay attention to the road at all times" commute.

This is all predicated on true autonomous vehicles though, not the half-baked non-solutions that exist today.