Pole Position
A prototype version exists (picture #1), dated 1-5-83, that has a number of differences with the released version (picture #2), and is basically a very early version.
The 4 different tracks (Practice Run, Malibu Grand Prix, Namco Speedway, and Atari Grand Prix) are all the same track. The only difference is the number of cars and billboards.
Its possible to take out 2 cars when you crash (video #1).
BUG: The manual states you must achieve a lap time of 73 or better to qualify, but its possible to qualify with 7306 and still earn 200 bonus points (picture #5).
BUG: The amount of time added when you get extended play seems to have a round-off error. Sometimes it adds a few more seconds it seems than it should.
BUG: When passing cars while driving down the center of the track on a straightaway, you will sometimes lose speed. On rare occasions, your max of 195mph will increase to 211mph passing cars in the last straightaway before the finish line (picture #3). If triggered before the final lap, and you complete the next lap without hitting anything or leaving the track, you might see your speed at 227mph (picture #4)!
BUG: You never actually reach the start/finish line at the end of the race (video #2). You also will finish the race even if you crash right before the finish line! {Scott Stilphen}
RUMOR: Someone claims they crossed the finish line during qualifying with 4 seconds left and earned 8th place.