I had planned for star trails above the treeline, but clouds moving in during the exposure limited the effect. Technical details follow.
Focal Length 18mm
SB-600 flash fired handheld twice at full power from front and rear of car during exposure.
Headlights turned on for 10 seconds during exposure.
Shot RAW
WB Bright Sun
Converted in ACR
Curves, Hue/Saturation, Shadow/Highlight, and Sharpening applied in PSCS2
Run through Neat Image
Resized
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Interesting idea, but all the wiggly lines - particularly the ones in forefround on the car tire and door, but also the cumulative impact of all of them together - become way too distracting and ruin what could otherwise have been a pleasing image.
Sorry but this image appears to me to be severely oversharpened, the strong halo around the treelines and car are a sure indication of that, I would go easier on the unsharp mask filter next time you process an image. Just a friendly pointer as your screen could be teasing you.