I am loving this theme....you should add her to the front under the mirrors like the fighters/bombers of WWII. I'm still toying with the idea of adding kill scores under the RCAF logo on mine.
As for color accents....spoiler is always an obvious option. If you like racing stripes then transitioning from yellow to black on the spoiler would be pretty dope.
Otherwise I view black cars as a negative version of colored ones. Instead of black decals do yellow. It's amazing how much a little (or big lol) sticker can change the appearance of a vehicle. It's a big change when you are able to break up the monotony of a single color.
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