To permanently depress the kickdown, you will cause a computer error...
which will say something is wrong with your kickdown switch.
You can reset your adaptive learning by disconnecting the battery... for a
Lastly, I am not sure what year you have and what tranny you have... If you
got normal, D-4-3-2 control, then drive in 4 for sport mode. If you got
steptronic, then try shifting gear yourself... it's fun.
One more thing, with a high performance car, you gotta have another feature
to kick it in performance mode... check your owner's manual on this topic.