ClassifiedsPlus is a fully featured Classified Ads CMS with responsive layout so that it looks good on both desktop and mobile. This script was created with the goal of being extremely fast to load, flexible to customize and minimal code structure.
Classifed Ads Features Overview

All native PHP, easy to modify code
Extremely fast page load times
Can handle thousands of listings with speed
Works fine on shared hosts even with thousands of listings
Easy installer, get up and running in 5 minutes
Configurable permalink structure for the single listing page(similar to WordPress)
Templating system based on Bootstrap 4
Custom fields per category or global
Search by custom field
Filter results by custom fields (e.g. fuel type for cars)
Configurable credits based plans/packages (free, paid, one time payment, monthly, annual, featured listing)
Google Maps, Mapbox, OpenStreetMap, HERE, TomTom, Wikimedia Maps compatible
Geolocation support (HTML 5 API)
Filter results by distance from the user’s geolocation (with configurable distance values)…