Answer: "I wanna go fast!"
When his mother goes inside to the grocery store, and Ricky is still in the car, Ricky crawls into the driver's seat and starts the car! When he starts driving, he says, "I'm going fast!". "If you ain't first, you're last," was said by his father, and also by Ricky during the later stages of his life. When Ricky is older he says, "I'm the best there ever was."