Prompt
"A fleet of diverse United States Postal Service vehicles, including delivery trucks, vans, tractor-trailers, and long life vehicles, such as Grumman LLV, Ford E-Series, and Freightliner M2, parked in a maintenance facility or driving on a road, with a mix of gasoline, diesel, and electric vehicles, in a realistic and detailed style, showcasing the variety and scale of the postal service fleet, with a focus on last mile delivery, amidst a subtle background of American landscape."
