Musashi no Ken

They both start when they are kids and gradually improves in what they do. Only difference is that Musashi no Ken is about kendo and Capeta is about cart racing.  

Both main guys grow throughout the series. They improve in the thing they do.  

Both are inspired by a death of someone close to them to become stronger in their sport. They also both show the main character as he is growing up with his sport through elementary, middle, and high school with Major going farther. 

You can try to compare learning Kendo in modern ways and the ancient ways. Totally different story styles & level of drama but shared some similarity. 

Both shows are of the sports anime genre. Despite these two series actually being about different sports, they both follow the same basic storyline. More people should watch Musashi no Ken; it's a classic on the same level as touch by all means.