Possible variables that were not accounted for:
1) Warmer pavement, warmer tyres, lower RR, better FE
2) Warmer car. bearings, engine, transmission, all warmer later in the day, Better FE
3) Driving technique
4) Wind
5) Air density
Just a few.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.
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