This is a Freefly Tero RC car with a VESC6 and a PCB that I made running on autopilot in my backyard with RTK GPS. I have written all the software that runs on the car and the Qt visualiztion and configuration program on the computer. Parts of the code come from back when I was a student and build all kinds of robots.
The code for sensor fusion, odometry and autopilot runs on an STM32F4 on the car and the Qt program is used for visualization and configuration only.
Update:
The source code for everything and PCB designs are available on github:
https://github.com/vedderb/rise_sdvp
Currently a lot of documentation for getting things running is missing, but if you feel like it give it a try. I don't have so much time to help out though.