Gran Trak 10 for two games to be played for a quarter rather than one. A placard on the front of the game gives suggested ratings for the score in a given game, from "License Revoked" for 10 or fewer points to "Real Pro" for greater than 40; the operator's manual suggests changing or removing this card if the time per game is adjusted. In the fall of 1973, Atari began work on a driving game, an idea founder Nolan Bushnell had wanted to do since the company was initially founded in June 1972 before it was shelved in favor of "Pong". The
Nolan Bushnell California, contracted with Bally Manufacturing to create a driving game, and hired their second employee, engineer Allan Alcorn. Bushnell later bought out Dabney, who was forced out after Nolan told him he would transfer all the assets to another corporation and leave Ted with nothing. After Bushnell attended a Burlingame, California demonstration of the Magnavox Odyssey, he gave the task of making the Magnavox tennis game into a coin-op version to Alcorn as a test project. He told Alcorn that he was making the game for General Electric, in order to motivate him, but in actuality he planned to simply