What is standard driveway width?

A single car driveway width should be 10' wide, anything less

than 10 feet will be too narrow to drive or park on comfortably.

12' is often used for added comfort and assuring to get out of your vehicle without stepping on the lawn or landscape.

If the driveway is surrounded by walls over 8" high, then 14' wide is recommended to open the car doors and exit the vehicles without damaging the doors. These specifications will accommodate all cars large or small and full size pick-up trucks & SUV's

8' - 9' wide driveways are not practical and should only be used if there is no other options. People have told me that they only need an 8' wide driveway because they have a small vehicle, but what happens if they buy a new vehicle or sell there home, will the new owners have small cars too?