So to sum it up, that would be a "faster you mash the acceleration button, the faster you go".
I'm not a fan of the games where you have to mash something the fastest possible. I'm too lazy for that
And also, it's very easy to make a soft that would mash the button for you.
Players could use something like that to have the maximum speed automatically, and it would be hard to detect this as cheating if the soft is done right.