Emperor is like that very powerful computer system built into the car - it aids driving, parking, communication as well as other systems - but the car needs fuel in order to drive the person to his direction.
In fact, because the Emperor computer system is so powerful, all the driver needs to do is just focus on the driving - or maybe at a later stage system has learnt enough that it can self-drive.
In this case, Mogul would be a suitable way for the car to get fuel, while Ascension gives the driver confidence that he can drive to his destination. Without either, it will be hard for the Emperor computer system to do its job.
And perhaps StarkQ would be another type of information system that provides all the information system - both past, present and future - which is necessary for the driver to decide where he should head and what he would face on his journey.
The StarkQ system also guides the driver on the best way to obtain the fuel to power the car, and also teaches him enough for him to have confidence to operate the vehicle.
And for those who want that additional benefit of the other half of the human race hopping into their car, StarkQ and the EmperorQ will deal with that.