What are some of the options I can get for an automotive scan tool. I am not talking about $100 where it reads code. I want to be able to get live data, for like the o2 sensor, I want to be able to open and close the purge solenoid for the evap from the computer. Is there any good deals where I can get one with laptop plug and play that supports all vehicles from audi to mercedes. Thanks for your time.