The problem with original road tests is that there was no consistency between them. Weather conditions, driver ability, etc. all contributed to wildly varying times. Sometimes the same car was tested by 2 different magazines, and et's varied by half a second.
On point.
So how then can anyone conclude that an equally prepped 69 HO, 69 HO with ram air induction and a 69 RA III Trans Am be any faster or slower? (same engine, trans ratios and rear gear ratio)
All one needs is to compute the equation of mass/torque/gear ratio/hp and distance to estimate what a given car could do.
Like you said, too many variables to difinatively conclude any test.
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1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.