I would have though more torque produces more power but I know nothing ha! I've had my car remapped via a custom ECU. It's going to be on a dyno next month. I'll ask to try all 3 modes and see if there is a difference. I can almost certainly feel it.
I cannot find a direct link to more torque = more bhp so should be interesting to see the difference if there is any.
Its not an easy concept is it?
Ill give you an example which works for me
The 1.4petrol relevant version and 2.0 diesel have both 170hp.
The diesel has masses more torque
In a head to head the petrol prob sneaks it(for varying reasons)
Now, stick 4 adults in each car and do the same race and the diesel will trounce the petrol 👍