My evo has a lot of drivability tuning done to it since I do actually drive it everyday. Dan gets a base map going and then tunes the drivability sitting on the couch at home. He just smooths the map all out. Obviously, the average person would have to pay for tuning. It has many hours of this in it. Whoever buys it is getting a great value on that part

All in all I think dan would say with an AEM and a good tuner you can get good drivability out of most high hp cars. The parameters on the AEM are very abundant.
In my experience most people would rather tune for power and the leave the drivability out to conserve money.