Okay, I have to eat crow now. The speed was the issue. I removed the aero from my tune and ignored the PI numbers. I adjusted the gears and now I am able to sustain 262 MPH to 269 MPH all the way up and down the highway. The mileage registered within 2 minutes. Thank you everyone that posted help in this thread.
I shared my tune for those who have not been able to complete the Noble mileage.
Search tune name: AJD HighwayMiles
Description: Drive 10 ten miles.
Good luck and drive as fast as the Noble can go for as far as you can on the highway.
Edit: Original Xbox One | Day One Edition
Edited by user Saturday, August 31, 2019 6:03:45 AM(UTC)
| Reason: Not specified