system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why the gas pedal is on right side and brakes on the left? is there a specific reason ?
gpt
When cars first appeared, there was no standard for the pedals.  In fact, many cars operated in a very different way altogether.  The first car with pedal layouts like you find in modern cars was the Cadillac Type 53 from 1916.  It wasn't immensely popular, but, for some reason, the Austin Seven copied its control layout, and the Austin Seven was one of the best selling cars of all time.

There's a Top Gear segment about this.