r/carquestions↗
CarQuestions
No question is stupid, No question is boring. Ask away. [Please read the rules before posting or commenting.](https://www.reddit.com/r/carquestions/about/rules/) [As well as read this post.](https://www.reddit.com/r/carquestions/comments/v593x4/psa_please_read_this_post_before_commenting_on/)
28k subscribers342 posts / mo in Sep 2026316 authors / mosince 2015
r/carquestions has 28k members (+49% over the last 12 months). It gets about 342 posts a month from 316 people. Top topics: Mystery Car Parts, Spotted Cars and Coolant Issues.
When to post on r/carquestions
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How r/carquestions has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/carquestions
Top topics
Share of the subreddit's posts
- Mystery Car Parts7.4%
- Spotted Cars2.3%
- Coolant Issues1.9%
- Button Queries1.9%
- Vehicle Registration and Titles1.6%
Brands people mention
Most-mentioned brands and sites, last 12 months
- Car-Part.com--Used Auto Parts Market
- Crutchfield
- AutoZone
- Consumer Reports
Everything else about r/carquestions
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research