“My high school was so small we had driver’s education and sex education in the same car” is a joke that has been told by many people. This was printed in the Philadelphia (PA) Daily News on July 5, 1978:
 
“Comic Tom Dreesen’s solution to school districts who are facing budget cuts: ‘At my high school,’ he told Mike Douglas, ‘they taught driver’s education and sex education in the same car!’”
 
American comedian Tom Dreesen popularized the joke on television’s The Mike Douglas Show in 1978, although he might have said the joke before this appearance.
 
       
Newspapers.com
5 July 1978, Philadelphia (PA) Daily News, Larry Fields column, pg. 26, col. 4:
Comic Tom Dreesen’s solution to school districts who are facing budget cuts: “At my high school,” he told Mike Douglas, “they taught driver’s education and sex education in the same car!”
 
Newspapers.com
8 October 1978, Sunday News (Lancaster, PA), TV Week, pg. 32, col. 1:
On The Road
PHILA.—Comedian Tom Dreesen offers a solution to school districts who are facing budget cuts. “At my high school, they taught driver’s education and sex education in the same car,” says Dreesen on “The Mike Douglas Show.”
   
Newspapers.com
20 April 1985, Kingsport (TN) Times-News, “Dems court Virginia teachers,” pg. 12A, cols. 4-5:
ROANOKE, Va. (UPI)—(...) She (Mary Sue Terry—ed.) quipped her high school in Patrick County was so small “they had to teach driver’s education and sex education in the same car.”
 
Newspapers.com
27 August 1986, Daily Times (St. Cloud, MN), “Tonight’s lineup will keep you laughing” by Mike Hughes, pg. 6D, col. 3:
This is, after all, the guy (comedian Mark Russell—ed.) who has a solution for school budgets: “They can start by holding drivers education and sex education in the same car.”
   
Newspapers.com
25 January 1990, The Spokesman-Review (Spokane, WA), “Hull does the town with sharp wit” by Dan Weaver, pg. D2, col. 4:
“Shadle Park hasn’t got a lot of money,” he (Dennis Hull—ed.) said. “They have Driver’s Ed and Sex Ed in the same car.”
   
Google Books
Madam President:
Women Blazing the Leadership Trail
By Eleanor Clift and Tom Brazaitis
New York, NY: Routledge
2003
Pg. 182:
“The school was so small,” she (Mary Sue Terry—ed.) says, “they had to teach driver education and sex education in the same car.”
 
Twitter
David Cuddlehoff
@snotrocketeer
My high school was so small that they taught drivers ed and sex ed in the same car, in the same night! #hearditinabar #withmikewallgren
7:25 PM · Oct 26, 2011·Twitter for iPhone
   
Twitter
Dennis
@Dennis32479639
My high school was so small that Driver Ed and Sex Ed were taught in the same car.  #education #sex #highschool
12:46 AM · Oct 5, 2013·Twitter Web Client
 
Twitter
Tim-Austin Maurer
@austim_maurer
“My high school was so small they taught Drivers Ed. and Sex Ed. in the same car.” #Nova2018
10:42 PM · Aug 24, 2014·Twitter for iPhone
 
Reddit—Jokes
Posted by u/Pushn50 December 5, 2019
My high school was so small
We had sex education and drivers education in the same car.