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xkcd #3244: Pullback Drive
(thelemmy.club)
Title text:
"How does the spring not run out almost immediately?" "We pull it back REALLY far."
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3244/
So you reverse the car to work and then coast your way home on spring power? I guess you'd have to go the long way into work.