First Electric van boat tail

[Logic]

Originally Posted by aerohead

In the USA, EPA testing only attributes 14% of energy to 'acceleration.'

Where?
Where does it say that?
You are not somehow above linking verifiable proof of your statements.

eg:

Who's Paper:

National Academies is the website for the National Academy of Sciences (NAS), the National Academy of Engineering (NAE) and the National Academy of Medicine (NAM), three independent organizations chartered by Congress to advise the nation on issues related to science, engineering, and medicine. These academies are private, non-governmental institutions that provide objective, science-based advice on critical issues.
https://nap.nationalacademies.org/

The paper:

In the UDDS (urban) driving cycle:
Rolling Resistance (%): 19
Aerodynamic Drag (%): 14
Inertia (%): 68

In the HWFET (highway) driving cycle:
Rolling Resistance (%): 29
Aerodynamic Drag (%): 47
Inertia (%): 24
https://nap.nationalacademies.org/re...4/chapter/4#19

REFERENCES [on that page]

EPA (U.S. Environmental Protection Agency). 2008. Light-Duty Automotive Technology and Fuel Economy Trends: 1975 Through 2008. EPA420-R-08-015. September. Washington, D.C.

Fischer, C. 2009. Let’s turn CAFE regulation on its head. Issue Brief No. 09-06. May. Resources for the Future, Washington, D.C.

Foljambe, E.S. 1916. The automobile fuel situation. SAE Transactions, Vol. 11, Pt. I.

General Motors Company. 2009. Chevy Volt gets 230 mpg city EPA rating. Press release. August 11.

Heywood, J.B., 1988. Internal Combustion Engine Fundamentals. McGraw-Hill, New York.

Kettering, C.F. 1918. Modern aeronautic engines. SAE Transactions, Vol. 13, Pt. II.

Larrick, R., and J. Soll. 2008. The mpg illusion. Science 320(5883):1593-1594.

Ricardo, Inc. 2008. A Study of Potential Effectiveness of Carbon Dioxide Reducing Vehicle Technologies. Prepared for the U.S. Environmental Protection Agency. EPA420-R-08-004. Contract No. EP-C-06-003. Work Assignment No. 1-14. Ann Arbor, Michigan.

Sovran, G., and D. Blaser. 2003. A contribution to understanding automotive fuel economy and its limits. SAE Paper 2003-01-2070. SAE International, Warrendale, Pa.

Sovran, G., and D. Blaser. 2006. Quantifying the potential impacts of regenerative braking on a vehicle’s tractive-fuel consumption for the US, European and Japanese driving schedules. SAE Paper 2006-01-0664. SAE International, Warrendale, Pa.
National Academies of Sciences, Engineering, and Medicine. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. https://doi.org/10.17226/12924.

[aerohead]

Originally Posted by Logic

Where?
Where does it say that?
You are not somehow above linking verifiable proof of your statements.

eg:

Who's Paper:

National Academies is the website for the National Academy of Sciences (NAS), the National Academy of Engineering (NAE) and the National Academy of Medicine (NAM), three independent organizations chartered by Congress to advise the nation on issues related to science, engineering, and medicine. These academies are private, non-governmental institutions that provide objective, science-based advice on critical issues.
https://nap.nationalacademies.org/

The paper:

In the UDDS (urban) driving cycle:
Rolling Resistance (%): 19
Aerodynamic Drag (%): 14
Inertia (%): 68

In the HWFET (highway) driving cycle:
Rolling Resistance (%): 29
Aerodynamic Drag (%): 47
Inertia (%): 24
https://nap.nationalacademies.org/re...4/chapter/4#19

REFERENCES [on that page]

EPA (U.S. Environmental Protection Agency). 2008. Light-Duty Automotive Technology and Fuel Economy Trends: 1975 Through 2008. EPA420-R-08-015. September. Washington, D.C.

Fischer, C. 2009. Let’s turn CAFE regulation on its head. Issue Brief No. 09-06. May. Resources for the Future, Washington, D.C.

Foljambe, E.S. 1916. The automobile fuel situation. SAE Transactions, Vol. 11, Pt. I.

General Motors Company. 2009. Chevy Volt gets 230 mpg city EPA rating. Press release. August 11.

Heywood, J.B., 1988. Internal Combustion Engine Fundamentals. McGraw-Hill, New York.

Kettering, C.F. 1918. Modern aeronautic engines. SAE Transactions, Vol. 13, Pt. II.

Larrick, R., and J. Soll. 2008. The mpg illusion. Science 320(5883):1593-1594.

Ricardo, Inc. 2008. A Study of Potential Effectiveness of Carbon Dioxide Reducing Vehicle Technologies. Prepared for the U.S. Environmental Protection Agency. EPA420-R-08-004. Contract No. EP-C-06-003. Work Assignment No. 1-14. Ann Arbor, Michigan.

Sovran, G., and D. Blaser. 2003. A contribution to understanding automotive fuel economy and its limits. SAE Paper 2003-01-2070. SAE International, Warrendale, Pa.

Sovran, G., and D. Blaser. 2006. Quantifying the potential impacts of regenerative braking on a vehicle’s tractive-fuel consumption for the US, European and Japanese driving schedules. SAE Paper 2006-01-0664. SAE International, Warrendale, Pa.
National Academies of Sciences, Engineering, and Medicine. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. https://doi.org/10.17226/12924.

I have a half-dozen automotive energy balance charts, of which data is solely dependent on the test 'context,' 'caveats', 'conditions', which you appear to struggle with.
Run an energy balance for John's van at 85-mph on the toll-road between Austin & San Antonio, Texas, and compare that to 'gridlock' around Johannesburg or Cape Town and see if he's stupid.