It always amazes me how far tech has come and yet how it seems to fail in some areas. Back in the analog days, on a NA plane we had to set our own mixtures but it was a pretty simple process all based on cylinder head temps. If the temps were too cool, lean it out. Too hot, enrich. On a TC aircraft (with a couple of other variables thrown in) you looked at manifold pressure and boost levels to make sure everything was in line. With all the computing power these days I'm not sure how onboard processors can't do this job in milliseconds. You would think we would have enough computing power onboard to run the car up to its limits without letting the driver exceed them.