Hot wheels supercar. which is the best placement of the pipes/footboard

I have made the model to my concept, I had this swirling pipe element which acts like a footboard in the concept or it could be rotated to make it look like some exhaust element, this fictional car looks like it has two engines, so I don’t know or think if logic really matters in hotwheels. I feel its not working, maybe some variation works better or its a proportion and shape related issue. Please point anything out or tell me which is the best variation.Please keep the criticism constructive, else will be blocked.
The concept sketch was to just draw inspiration, the drawings are not the best.