I would like to stay away from flames or a gear as they are both widely used in logos of other cars builders. If flames are used some sort of unique tribal that's symmetrical as a background. It is also not nessecary to use the full name as I would like my hats, cards, and cars to use BMF with hot rods in script below it as a trademark.
I like where you are headed with this one but im not real into the little car. Try maybe the sleek outline of a classis car something real swoopy and simple??? I will try to find a good reference for this via the internet