I recently left a car (2002 Mini Cooper S) at the Ocean Ridge Airport (E55) in Gualala, CA on the Sonoma/Mendocino coast. It's an absolutely beautiful area. There are some camp sites by the Gualala River, and plenty of vacation rentals at The Sea Ranch (google it). The area is fairly secluded, so it's about a two hour drive from Santa Rosa or Petaluma, which is probably the nearest place you'd find a rental car. My family and I are trying to get up there more frequently so we decided having a car on site made sense. That said, it will still spend most of its time parked at the airport. I'm happy to share it with any VAF folks who are interested. PM me if you're interested in using it, and we'll sort out the details.