There is some market for a 2nd vehicle in a family which has more limitations. But the biggest market is for a do-everything vehicle. The question isn't what is the mean or median commute, its what is the 99.9th percentile journey. Sure it can get you to work and back, but can it get you to grandmother's house for Thanksgiving dinner?

I think targetting the 99.9th percentile trip is maybe even a bit low. A commuting American has at least two car trips per typical day, probably more like 5. So 1 trip in a thousand means something that comes up more than annually.