Inventory Presser


This plugin tranforms WordPress into a powerful dealer website platform that makes displaying a vehicle inventory easy.

  • Supports automobiles, motorcycles, ATVs, RVs, and boats
  • Manage multiple lot locations and separate phone numbers & hours for each
  • VIN-decoding add-on available
  • Custom post type inventory_vehicle makes importing data easy
  • Categorizes inventory by type, body style, fuel, transmission, drive type, availability, and new or used
  • Includes many widgets including vehicle sliders and inventory grids

Built the right way and developer-friendly

  • Creates a custom post type & 11 taxonomies to store and group vehicles
  • Editor sidebar integrates custom fields into the block editor
  • Adds columns to the posts list for vehicles for stock number, color, odometer, price, photo count, and thumbnail
  • Implements custom taxonomies to group vehicles by year, make, model, type, fuel, transmission, drive type, availability, new or used, and body style
  • Hooks in all the right places & four powerful shortcodes
  • Template tags make front-end development easy
  • Runs on any theme & provides shortcodes for the stubborn ones.
  • Full feature list & more documentation


  • This is a list of vehicles in the administrator dashboard that the user sees when she clicks the Vehicles or All Vehicles menu items. Each vehicle is listed by year, make, model, trim, stock number, color, odometer, price, and photo count. If the vehicle has photos, a thumbnail is also shown. This screen shot was taken on version 3.1.0.
  • This is the edit screen that adds or edits a single vehicle. The post content box is demoted to handle only the sentence-form vehicle description, and the entire edit screen is enhanced to support vehicle attributes. This screen shot was taken on version 3.1.0.
  • This screenshot shows a vehicle post in the WordPress block editor. An editor sidebar for the Inventory Presser plugin is expanded and contains vehicle attribute fields. An arrow points to a button with a key on it that reveals the editor sidebar.
  • This screenshot shows a vehicle archive on the Twenty Twenty theme before any customization.


This plugin provides 9 blocks.

  • Engine
  • Interior Color
  • Length
  • Color
  • Beam
  • Odometer
  • Last Modified
  • Hull Material
  • Body Style


  1. Upload the inventory-presser directory to the /wp-content/plugins/ directory
  2. Activate the plugin through the ‘Plugins’ menu in WordPress
  3. Read this plugin’s Frequently Asked Question called “Will Inventory Presser work with my theme?” to learn how vehicles can best be displayed


How much does this plugin cost?

This plugin is free and open source. Free and paid add-ons & services are available at

Does it decode VINs?

Not for free. A VIN decoder add-on is available at

Can I import my inventory into this system?

Yes. We use the WordPress REST API to deliver inventory updates. Read how we do it. Vehicles in Inventory Presser are stored in a custom post type using meta fields, taxonomy terms, and photo attachments, and many CSV/spreadsheet importer plugins work with custom post types. If imports sound challenging, Friday Systems (that’s us) feeds hundreds of sites running this plugin. It may be easier to let Friday Systems handle the last leg for a monthly fee.

Will Inventory Presser work with my theme?

Yes. Check out our Theme Compatibility Guide. If your theme does not include templates to display listing pages and vehicle detail pages, the plugin will provide the markup for those pages automatically. There are shortcodes like [invp_archive] and [invp_single_vehicle] as a last resort. A number of Template Tags make designing custom templates easy.


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Contributors & Developers

“Inventory Presser” is open source software. The following people have contributed to this plugin.


Translate “Inventory Presser” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • [Added] Adds the ability for add-ons to store their license key in a key with a name that is not license_key. A few add-ons already use _license_key.
  • [Added] Adds a filter invp_vehicle_attribute_table_items that allows the vehicle attribute table items to be manipulated just before they are parsed into HTML.
  • [Added] Upgrades the taxonomy overlapper class to allow the updating of the transmission speeds meta key when term relationships in the transmission taxonomy are changed.
  • [Added] Adds car ID, dealer ID, leads ID, Edmunds Style ID, title status, and Next Gear Inspection URL to the editor sidebar.
  • [Changed] Changes the taxonomy overlapper to make sure the meta value matches a term name with which a vehicle has a relationship when relationships are deleted. For example, if a vehicle is erroneously assigned both “Convertible” and “Sedan” body styles, this change makes sure Sedan is saved in the meta field when Convertible is removed.
  • [Changed] Re-implements the archive “View Details” button as a hook on invp_archive_buttons rather than expecting all templates to implement it. Adds a filter invp_css_classes_view_details_button on the CSS classes because that is a feature we need on day one for the two different themes we have on production sites.
  • [Fixed] Fixes bugs in the invp_get_the_odometer() template tag and the vehicle attribute table to avoid outputting odometer and engine attributes that do not actually contain values.
  • [Removed] Removes fields from the editor sidebar that are managed via taxonomies and the taxonomy overlapper: year, make, model, and body style.


  • [Fixed] Fixes a bug in the taxonomy overlapper that was causing sold vehicles to show as available. Meta keys were not always being updated when the overlapping taxonomy term relationships were changed.
  • [Changed] Changes the add-on updater to not show a plugin update nag unless a download link is available.


  • [Added] Adds a colors taxonomy to help users shop by vehicle color. This taxonomy is designed to hold the base color. That means the value might be “Red” rather than “Ruby Mist Metallic”.
  • [Added] Adds new classes Inventory_Presser_Addon and Inventory_Presser_Addon_Updater to help add-on plugins store license keys and obtain updates from
  • [Added] Adds two API methods INVP::option_group() and INVP::option_page() to help add-ons avoid hard-coding string slugs for the page and group where this plugin’s settings are manipulated.
  • [Added] Adds an action hook invp_loaded that runs on the plugins_loaded hook but after Inventory Presser has finished loading. This hook is designed as an add-on entry point.


  • [Fixed] Bug fix when registering a term meta key dealer_id in locations taxonomy. Sanitize callback of intval() prevent updates to the terms in the locations taxonomy. Changed to use sanitize_text_field() instead.


  • [Changed] Changes the tested up to version number to 5.8.0.
  • [Fixed] Fixes a bug in the Map widget that was hiding the widget title underneath the map.