Hello! Going on vacation for a little bit and listing my still very new 2016 Toyota Prius Eco, which has quite high gas mileage (average 55 mpg!). There are lots of features, including USB+Bluetooth, rear parking camera, keyless start, fold-down backseats for extra storage, and a dashboard mount for a phone. No extra-long road trips (so San Diego is fine but not San Francisco) and no pets please. If you have a young kid, you would need to bring your own car-seat. Rentals around 4-9 days preferred but not required. Let me know if you have any questions or concerns, thanks!