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A comment on Regulation, not technology is holding back driverless cars. Parent comment

Re:Regulation, not technology is holding back driverless cars by ars on Sunday May 29, 2011 @07:25PM (#2597906)
Automatic transmissions avoid engine braking. If you want it, you need to choose it manually.

And personally I never do for the simple reason that brakes are a lot cheaper than transmissions. And I rarely descend a hill long enough and steep enough that brake heating is a serious problem. (And when I do I usually just slow down, and stay slow.)

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Re:Regulation, not technology is holding back driverless cars by stretchwithme on Sunday May 29, 2011 @07:52PM (#2597951)
I downshift on hills because that keeps more of my stopping power ready to use. Brakes heat up when you use them continuously, reducing their effectiveness.
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