Hawkeye and Test got it right. I don't think that swimmers are genetically inferior to car racers.
But I do wonder how many people interpreted it Wildside's way. Maybe it was because I used the movie photo in the last shot? That was a last minute decision because it was the exact right facial expression that was hard to draw. There is something of a science to gag drawing that I am exploring. You have to guide the reader through certain expectations and implications so that you can confound expectations later - so it's important to know if people are misreading my work.
Now that I think about it, I wonder if that squint that the actor does is a homage to Speedy's japanese origin.