“What do you call an electric car at the top of a hill?”/“A miracle.”

A joke about an electric car is:
 
Q: What do you call an electric car on top of a hill?
A: A miracle.
 
The joke has been cited in print since at least 2008.
 
   
Mark’s Musings
Friday, January 04, 2008
Electric Car
(...)
ELECTRIC CAR JOKES
With apologies to the Yugo
What do you call an electric car at the top of a hill?
A miracle.
 
Google Books
It’s Better to Die Laughing Than to Be Dead Serious:
How to Be the Life of the Party, the Podium, and Everywhere In Between
By Marvin Maupin
Bloomington, IN: AuthorHouse
2010
Pg. 90:
What do you call an electric car at the top of a hill? A miracle.
 
Twitter
Drive.co.uk‏
@drive_co_uk
What do you call an electric car at the top of a hill?
A miracle.
8:27 AM - 28 Apr 2010
 
benzinga
Green Jokes from My Green Stock Speech Last Week
Fred Fuld , Stocker Blog
May 20, 2010 3:01pm
(...)
What do you call an electric car at the top of a hill? A miracle.
 
Twitter
Andrew‏
@AndrewHansen
@BenImrie Q. What do you call an electric car at the top of a hill?  Ans. A miracle.
5:06 PM - 5 Oct 2011
 
Twitter
Druk&Drukpa‏
@drukanddrukpa
Q: What do you call an electric car at the top of a hill?
A: A miracle.
1:59 PM - 24 May 2014