Escapade!
An interactive fiction by Juhana Leinonen (2008) - the Inform 7 source text
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The speed dial is a dial. It is part of the flux capacitor. The description is "The speed dial points at zero. Curiously there's a large red line at about 88 miles per hour mark."
Understand "red" and "mark" and "88" and "mph" and "miles" and "per" and "hour" and "large" and "line" and "zero" as the speed dial.