Telemetry data can be shared and analysed in order to detect problems or compare the driving style of different laps or drivers. We use the ACTI app (recording) and the Motec i2 software (analysis), both of which are available free of charge.
To generate the data, you first need the ACTI app. The overtake.gg package contains detailed installation instructions: https://www.racedepartment.com/downloads/acti-assetto-corsa-telemetry-interface.3948/
This package also includes a Motec installer, but you can also get the latest version directly here (i2 Pro): https://www.motec.com.au/i2/i2downloads/
To save telemetry data, the ACTI software must be running while driving. You can recognise the status in the ingame app, for example, which looks like this:
ACTI generates *.ld and *.ldx files that can be imported into Motec. We also share these files with each other. The import then looks like this:
In the Assetto Corsa forum a user named Manic has created a pretty cool ACC workspace, which we have partially adapted for AC. You can get the customised workspace on our Discord. Simply unzip the folder and then paste it into \Documents\MoTeC\i2\Workspaces. It should then be displayed as a workspace in Motec:
Manic has created an overview video about the workspace and has also written several very detailed forum posts about its use.
Thanks to Baron for writing that guide for us.