It's not just about the mapping software. For a race car, it is acceptable to just have a very simple map that makes the best use of full-power, but for the road, there is a whole lot more that we have come to take for granted, even in our 15+ year-old Fords. Alot of these basic systems were created for race use.

These 'luxuries' include Idle control, cold start, warm up etc. These are all things that make the more expensive management systems worth their money IMO.

Even Omex 500 series is very primative by today's standards, I wouldn't have it on my car now. Regardless of power, I still expect to have reasonable drivability and fuel economy.