I left the states in 2006 and returned in 2014. When I left I left my car, a Suzuki Samurai, with my father. He has been using it, exclusively, as an off road vehicle on his property, checking the well, fences, stuff like that.
When I returned I returned to Salt Lake instead of Northern California, where he is. As such, I never put much effort into bring it back, when I have gone to visit in No. Cal. I have either flown or taken the train.
As for transportation, when I got this job in Kansas I used ship bikes to fed-ex my bike and stuff to my new office. When I flew in to the town I work in my new boss came and picked me up at the airport. I have used air travel to come in and out of this town other than two occasions in three years, on those days I rented a car.
I keep thinking of getting a car, it would make a few things easier. However, I have lived without a car for so long that it is just how I live.