Supported Cars

MS509 supported models
maxiscan supported cars
maxiscan ms509 read vehicles
vehicles list

Your all favorite MaxiScan uses OBD 2 to get in your car's computer.
OBD-II is a protocol used for communication between vehicles and diagnostic devices as you can see here:

After a bit of research, here is a list of all OBD-II car models:

http://www.myscantool.com/vehicles.html#volkswagen

The MS509 SHOULD support them all, but sadly it does not.
I will give you updates about the supported and non-supported ones here.
You can also help in the comments.

Also another website for OBD-II
www.outilsobdfacile.com/vehicle-list-compatible-obd2.php