Crazy! Backwards. Transmissions today are likely to be more efficient than manuals. Where do we get these weirdos?
False.
M/Ts have more efficient power transmission.
If you are talking gear ratios, just adding additional gears will solve the engine operating point efficiency issue.
The average age of FReepers is past retirement age. It shows in these kinds of claims based on reality from decades ago. Manual transmissions are a relic except in specialized uses. Dual-clutch with paddle shifters have replaced them for row-your-own, except for nostalgia buffs.