I would have thought the HP and stuff would be mentioned here somewhere. But I know for sure the fuel consumption is because it has it's own thread, you might just need to search a bit to find out who's running the 2.5 or the 3.
It's definitely there in the D22 section though, try searching for "fuel consumption" or something similar or use an Advanced search in the D22 section for the same thing I'm sure it will come up.
And welcome to the forums.