I feel so stupid. I found the command in the datasheet after all, but I can't quite get the exact baud that I'm after.
ATPP 2D SV 0F gives 33.3K baud
ATPP 2D SV 05 gives 100K baud
The value for the 4th bit can be calculated using: 500/<decimal value> = baud
0F hex = 15 decimal
05 hex = 05 decimal
500 divided by 15 = 33K baud
500 divided by 05 = 100K baud
However, I am after 95K, not 100K. If I use the value 06, I get 83K.
Am I under the impression that unless I have direct access to the registers on this dodgy cloned ELM327 chip (which is actually a PIC) then I will not be able to get the exact rate that I'm after?