BMW Engineering tester can do exactly the same as GT1 and more.

It works on all BMW cars, including MINI and Rolls Royce vehicles , which use BMW system as well.

This system is only used by BMW engineers in each countries headquarters.

It is not used by dealers because it is more powerful than GT1, and it is  more difficult in use, because it does not have any help menu, etc.

It can do more functions to all ECU’s then GT1.

If you don’t understand the system you can do a lot of damage.

That's why it is used only in engineering  environs.

You can still do all basic functions like read, clear fault codes, live data and actuators tests as well.

 System emulates CAN

Interfaces for true CAN