ALS: Automotive Grade Linux

My car has MS-CAN, HS-CAN and OBDII. I can read all three from the OBDII port:

http://she-devel.com/Mazda3_Controller_Area_Network_Exper...

My vehicle dates to 2005, so newer cars likely do have better security, although the kind of inter-bus communication I report is observed in many newer models as well.