I took the car out tonight and did some more testing. Did a wide variety of driving from highway cruising to all out high speed runs
"high speed driving conducted on private property". Did several all out 0-120 runs and a few races with a local Carrera 4S for fun. After 100+ miles of mixed driving most of it being high RPM I ended up at 15.2 MPG.
I will continue to test MPG over the next week to try and get as much info as I can based on different conditions and driving habits. I will reset and start logging data again tomorrow. Once I collect enough data hopefully I can deliver some accurate information.