A short, curated guide — not an automatic related dump. Figures come from SubMouse's safe-for-work directory when we have them.
r/cars is Reddit’s large automotive enthusiast hub for discussion, news, reviews and projects. Sibling rooms help when you want dashcam fails, intentionally wild mods, or repair troubleshooting.
Noisy unrelated related-list hits are omitted.
Stay on cars for enthusiast discussion and industry news. Use IdiotsInCars for dangerous/funny driving clips, Shitty_Car_Mods for questionable aesthetic mods, and MechanicAdvice when you need repair diagnosis help.
r/cars — r/Cars - For Car Enthusiasts
r/Cars is the largest automotive enthusiast community on the Internet. We're Reddit's central hub for vehicle-related discussion, industry news, reviews, projects, DIY guides, advice, stories, and more.
Idiots In Cars
When to choose it: The clip is bad or absurd driving behaviour.
Why it is here: Listed as related to r/cars in our directory. Public description: when idiots get behind the wheel, shit gets funny.
How it differs from r/cars: Dashcam fail humour versus enthusiast discussion.
Shitty Car Mods > stupidity on wheels
When to choose it: You are showing or judging questionable vehicle mods.
Why it is here: Listed as related to r/cars in our directory. Public description: post pictures of cars with terrible mods (including “shitty but awesome”).
How it differs from r/cars: Mod-roast gallery versus general cars talk.
Advice from experienced mechanics from several fields.
When to choose it: You need troubleshooting help for a repair.
Why it is here: Listed as related to r/cars in our directory. Public description frames more than a simple repair forum and points readers at sidebar posting rules.
How it differs from r/cars: Repair Q&A versus enthusiast news/projects.
Run the automatic finder for r/cars (results are matched from our directory; that page is not indexed): Find related to r/cars.
Members and public descriptions come from SubMouse's safe-for-work directory (as of 2026-11-02 UTC); 7-day growth measured from 2026-10-26. Posts/day and culture claims appear only when we have them — missing fields stay n/a. Directory rank is listing order. Communities outside the published Top 100 open in the info tool instead of a full community page. Guide updated 2026-11-06.