Hello @Poley
For the code size report, we have added such a feature in the MBDT for S32K1xx 4.3.0, so now in the diagnostic viewer, you shall be able to see the code size.

If you are using an older version of our toolbox, you could type the following command in MATLAB, by setting the current folder inside your generated *_mbd_rtw folder, and replacing the name of the .elf file with the one of your model.
system([fullfile(mbd_find_s32k_root(), 'tools\gcc-6.3-arm32-eabi/bin/arm-none-eabi-size'), ' --format=berkeley gpio_s32k144.elf'])

Hope this helps,
Marius