Car manufacturer Tesla is considering expanding the forthcoming update for its fully self-driving software, CEO and major shareholder Elon Musk reported on Twitter on Friday.

The American car brand is expected to make the update available to a group of Tesla owners in two weeks.

In October, Tesla already released a test version of the so-called fully self-driving software.

This upgrade was only available to a select group of "expert" drivers.

The update would, among other things, ensure that Tesla vehicles can better steer without and accelerate without human intervention.

This makes the software "completely self-raising" according to the manufacturer.

Musk previously indicated that there may be a more widely available upgrade for the self-driving software at the end of this year. The data from the beta phase should make the system more robust.