Good to see another long-exposure car shooter - has worked well and delivered a result with the ambient light.
1 looks like a symmetry flip. Pretty well done, you've retained the wipers in their right place and the car has the right number of steering wheels so it's already better than some I've seen. Shame there's not more light on the bottom of/ beneath the car but if this is a recovery job I'll let you off.
the rest - a mixture of comments to make really. In no particular order:
I like the light trail but want to see it come out the other side too.
Colour temp is too cold - alloys and grass in particular are carrying too much blue (why is the car on grass btw?).
Headlights - shoot a frame that records the headlights the way you want them then switch them off - avoids too much interference with the rest of the exposure. You can even do this in-camera on the D80 using the Image Overlay function - a seriously underrated function.
Crops - a little tight throughout really IMO, were you doing this to let you get your light closer to the car?
Focusing - good job, not easy in low light but no obvious signs of difficulty.
Lighting - generally you're getting enough light on the car although not always in the right places. As said above you need to watch your positioning but if you avoid standing between the subject and the camera you'll never record your own lighting silhouette
Oh, the other thing about the D80 is the wireless flash built in (assuming Nikon SB flashes). Use commander mode and capture X exposures where X = ambient light, headlights, strobe to side/ front/ bonnet/ roofline/ interior - TP user GFWilliams put together a screengrab video of how he processes his images when he's shot them this way.
Using a continuous light over long exposure can deliver great results and it's worth having someone with you the first times so you can stay by the camera and see where the light needs to be to deliver the result you want.
