How come we can’t just add X amount of gears to a transmission and have one of the most efficient cars ever?

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How come we can’t just add X amount of gears to a transmission and have one of the most efficient cars ever?

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Anonymous 0 Comments

Its common for trucks or busses to have 10-12 gears, some even 18 gears. But thats because they have to pull tens of tons, with relatively small engines. For example a 20t iveco truck has a measly ~ 300 hp engine, with a 9 manual or 12 semi auto gearbox.

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