Hello aniket.bagade@external.hella.com,
1) 
Any model for S32K needs to contain an S32K Config Block. in the Target Connection, if you have the 'Download Code after Build' checked, then after the code has been generated and successfully built, it copies the .mot file to the OpenSDA Drive Name selected. The screenshot shows which settings to be performed in order to get this functionality. You can always manually copy-paste the .mot file to the mounted disk and the OpenSDA will program the board via JTAG.
Also, what was I suggested in my previous message was to try flashing the generated elf or mot using the S32DS, to see that the generated code works fine and to isolate the problem to the mounted disk.
2) Unfortunately I don't have a brand new board to test that. This should not be a problem. You should be able to flash your own code to that board and to get the desired functionality.
Hope this helps,
Marius