What is the difference between Xhorse VVDI BMW and Xhorse VVDI2 BMW?

Question 1 : Does all functions of VVDI BMW tool come from VVDI2 BMW key programmer?
Question 2:Can vvdi bmw add new features to vvdi2, just like by purchasing a license?

The answers to the above two questions:  
No, they are two different tools.
Generally speaking, VVDI BMW tool is mainly used for coding and programming.
VVDI2 BMW key programmer is designed for locksmith. It is widely used for diagnosis, IMMO etc.
The BMW features of VVDI2 will continue to upgrade. The two devices should be partially separated (not identical).

In details...

1. In capabilities:

VVDI BMW tool

1. Support  E chassis/F chassis Programming function
   2. Support E chassis / F chassis code function
   3. OBD make Key: Support EWS/CAS1/CAS2/CAS3/CAS3+/ISTAP etc.
   4. File Generation Key: Supports CAS1/CAS2/CAS3/CAS3+/ISTAP/CAS4/CAS4+, etc.
   5. Support FEM/BDC system to generate keys, replace FEM/BDC control unit, support reset mileage
   6. Supports mileage correction CAS1/CAS2/CAS3/CAS3+/ISTAP/CAS4/CAs4+
   7. Support for reading EEPROM and sync data for CAS1/CAS2/CAS3/CAS3 systems
   8. Support simultaneous engine and CAS, synchronous ELV and CAS
   9. Support reading SN data from the engine
   10. FRM programming, FRM manual coding, fixing FRM after flash damaged , manual programming, auto ID back UP
   10. Support reset 8HP gearbox in F chassis.
   11. Support exchange ECU and CAS.

2. In software installation

VVDI BMW Tool and vvdi2 software installation is similar.
Windows XP, WIN7,WIN8,WIN10..

3. In language

VVDI BMW tool language : English, Spanish, Italian, Polish, Hungarian, German
vvdi2 language: English, Chinese, Italian, Spanish, German, Hungarian

4. In BMW coverage:

The vvdi bmw KM and IMMO function supported bmw car year similar like VVDI2 BMW key programmer. Most are differentiated according to the IMMO system. Currently, BWM is supported from very old EWS to CAS (1, 2, 3, 3++ 4,4+) and the latest FEM/BDC system.

What kind of range is the bmw car year supported by vvdi bmw?
Answer: Its BMW vehicle coverage probably as the same as that of VVDI2 BMW.

5. In software update

VVDI BMW Tool: software update online, firmware update via xhorse update kit software.
VVDI2 BMW: software update online, firmware update via xhorse update kit software.

Thanks
VVDI BMW Tool in stock here:
http://www.obdexpress.co.uk/wholesale/xhorse-vvdi-bmw.html

Source:
http://blog.obdexpress.co.uk/2019/12/12/vvdi-bmw-vs-vvdi2-bmw/