"Write your life in terms of ten cars from your past. Are you inside or outside the car? Where are you sitting? Who else is there? What's to your right and to your left? Where are you going?"
A writing prompt from Lynda Barry, quoted in "UW-Madison profs Lynda Barry and Andrea Dutton win $625,000 MacArthur 'genius' award" (at the subreddit r/Wisconsin).