Here’s the difference between an optimist and a pessimist.

An optimist drives the BMW i3 electric car and marvels at how great it is that he has only to lift his foot off the accelerator for the car to stop. The moment the foot releases pressure, the regenerative braking system will make actual braking—placing your foot on the pedal and pressing down—unnecessary. The car slows dramatically on its own.

A pessimist drives the BMW i3 electric car and finds himself annoyed that those blasted regenerative brakes make it feel like you’re stutter-stepping through every stoplight.

I tended toward the latter. It could be a character defect. I’m OK with that.

Immediate deceleration is not the defining characteristic of the car—the oblong body, 117-mpg efficiency, and variety of interior materials are all good candidates for that—but the sensation certainly commands your attention. And it gets more wearisome over time.

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