The characters above are not going to be part of the story. The lady was one of my first designs but later on I decided to go for Granny, Machine Kid and Tom only.
There are 2 small side characters. One of them represents the rules (sometimes ridicilous) of society. He is the Health and Safety Inspector who comes to inspect the racing vehicle with not too good news.
The other side character is Granny's worst enemy, her rival racing driver.