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Back in the 60's I remember trucks in the right lane, flashing lights, going 15 miles an hour while pulling trailers up a steep grade.
Now it seems that if a truck can not go over the speed limit while pulling a trailer up a steep grade, they need to upsize the engine or add a larger turbo.
If you look at the high cost of all that torque, that is rarely used, or for that matter the cost of a car that can do 0-60 in 4 seconds, rather than 10 seconds? Is 6 seconds really worth 30K or more in upfront costs?
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