The little data that is coming out of Tesla’s Full Self-Driving Beta looks awful, and that’s putting it mildly.

We challenge Elon Musk to prove otherwise by releasing disengagement and driver intervention data.

To be clear, the Tesla Full Self-Driving Beta data in this article is very minimal, and therefore, it could not be fully representative of the actual capacity.

But that’s the point of the article. It’s unfortunately the best data available because Tesla has gone out of its way to not release disengagement data that other companies developing self-driving systems are making available.

A disengagement consists of the system disengaging whether by itself or by the driver in order to either avoid danger or comply with the rules of the road. Miles between disengagement have been useful data to track the progress of self-driving programs.

While Tesla doesn’t release the data, a group of Tesla FSD Beta testers has been self-reporting data for a while now, and Taylor Ogan of Snow Bull Capital has tracked it to see the progress.

According to the data, miles driven per disengagement have gone down by 54% since March, and it currently sits around the same level it was around this time last year: