Travis they cover all of the vw/Audi platform with ecu controls (96-current)
BMW Mercedes jeep sprinter for sure I haven't looked that much deeper
Their website is currently being revamped so some of the content comes and goes here.
I bought in with them because I am a torkdork at heart and wanted the focus to be on diesel software. However they offer a lot of gas tunes as well specifically for vw/Audi. I also bought adaptive software for writing out immobilizers if you wanted to use a different ecu in your car, or you wanted to put an immobilizer equipped engine swap into something else.