This is a Speed based timing system that was originally designed for Blower Cars in a drag racing scenario it allows you to pull power from the launch and slowly ramp it back in, I'm sure it has other used case scenarios such as no prep racing and an assortment of other things.
Goes into the License Plate Slot its called Speed Based Timing. Not currently compatible with mods that do not have a license plate slot. Talking to other creators and making sure they include them from now on.