How to make a vehicle's boost when you hit an area

Ok this isn’t polished or perfect but with some tweaking you should be able to get it working the way you want. Here is a screenshot of the BP I am using for the overlap:

If you would prefer to download it as a working project to tinker with here is a link: A413Vehicle.zip - Google Drive

(Edited 12/25/2022 to update Google Drive file link)