SubTrends

Averages 12 posts/day, top 25% activity. Most active Thursdays around 4 AM UTC. Mostly link posts (74%).

Posts / Day Average posts per day this month. Arrow is change vs the prior calendar month.
12 100%
Avg Upvotes Mean net upvotes per post this month (upvotes minus downvotes). Arrow is change vs the prior month.
26 47%
Avg Comments Mean number of comments per post this month. Arrow is change vs the prior month when that month’s data is available.
25 32%
Activity Rank #12,618 by posts/day among 90,883 tracked SFW subreddits as of Sep 2026 (Top 25%). Arrow is spots gained or lost vs the prior month.
#12,618 9,367
Top 25%
Posts w/ Links The percentage of posts that link off-site. This counts true link posts plus text posts with a URL in the body. Image and video posts are not counted.
77%
Low-Reply Rate Share of posts with 0 or 1 comment. A single comment is often an automated mod reply rather than real community discussion.
46%

r/SelfDrivingCars Traffic & Engagement

Volume and engagement over time

Posts/DayAvg Upvotes0102030050100150Sep 1Sep 8Sep 15Sep 22Sep 29
Posts/Day Avg Upvotes Mean net upvotes per post in this bucket.

Post Format

Top Post Type Link
Typical Title Length Medium (78 chars)
Peak Day Tuesday

Upvote Distribution

How upvoted posts perform Only posts with 2+ upvotes. The bands below show how those posts are spread by upvote count.

2–9
32%
10–99
57%
100–999
10%
1K+
0%
Posts that get upvoted Share of posts that received at least one upvote (2+ net upvotes). Most posts at 1 upvote are excluded. 58%
Median upvoted post Median upvotes among posts that received upvotes. Differs from Avg Upvotes in the snapshot, which includes every post. 18
Top post Highest upvote count on a single post this month. 1.0K

r/SelfDrivingCars Most Active Times

Peak posting by day and hour (UTC)

Sun
Mon
Tue
Wed
Thu
Fri
Sat
12 AM
1 AM
2 AM
3 AM
4 AM
5 AM
6 AM
7 AM
8 AM
9 AM
10 AM
11 AM
12 PM
1 PM
2 PM
3 PM
4 PM
5 PM
6 PM
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9 PM
10 PM
11 PM
← Swipe →
#1 Top 3 activity windows

Most Active by Day

Sun 3 PM
Mon 1 PM
Tue 3 PM
Wed 1 PM
Thu 4 AM
Fri 12 AM
Sat 3 AM

r/SelfDrivingCars Flair Performance

Upvotes and volume by flair

Flair Posts Upvotes
News230 (68.5%)32
Discussion65 (19.3%)4
Driving Footage19 (5.7%)33
Research12 (3.6%)7
Other10 (3.0%)1

Post Type Breakdown

Share by text, image, or link

74%link posts

r/SelfDrivingCars Trending Keywords

Ranked by how often they appear

KeywordMentions ▼UpvotesComments
driving
82 (23.6%)
2330
tesla
79 (22.8%)
5353
autonomous
63 (18.2%)
1511
waymo
59 (17.0%)
3620
self
56 (16.1%)
2528
robotaxi
39 (11.2%)
2827
cybercab
38 (10.9%)
2048
cars
37 (10.7%)
1915
driverless
29 (8.4%)
3215
car
26 (7.5%)
3827

r/SelfDrivingCars Mentioned Domains

Most linked sites

Domain Links Upvotes
youtube.com1217
x.com1118
futurism.com931
techcrunch.com688
electrek.co6137
waymo.com680
youtu.be66
reuters.com531
eletric-vehicles.com524
spectrum.ieee.org362

r/SelfDrivingCars Top Posts

Highest-performing posts

r/SelfDrivingCars Audience Overlap

Overlapping audiences

r/SelfDrivingCars FAQ

What's the best time to post on r/SelfDrivingCars?

Based on posting volume, r/SelfDrivingCars is most active on Thursdays around 4 AM UTC. That window has the most community activity, but busier hours also mean more competition for attention.

How active is r/SelfDrivingCars?

r/SelfDrivingCars averages 12 posts per day and ranks in the top 25% for activity among tracked SFW subreddits.

How many upvotes do posts on r/SelfDrivingCars get?

Posts on r/SelfDrivingCars average about 26 upvotes this month (net score per post).

What kind of posts does r/SelfDrivingCars get most?

On r/SelfDrivingCars, most posts are link posts (74%)