Don't forget about Racer-X, that was his brother.Trixie was his girlfriend and wasnt the monkey named something like JimJim, then there was Dad, they could get the dad from OCC choppers to be that guy.... I loved speed racer when I was a kid, I still know all the words to the song from above.....
Ya know guys its hard to have a realistic car chase when the car has springs and can jump out of danger... I'm not sure but I think they are leaving some of the imagination for the kids and not so much aimed at us for the realism...
Cap