Damn you guys work fast!
Here's some C&C as you asked for it
-1 Watch out what your windows are reflecting, as the ceiling of the warehouse is quiet dark, you need to make the windows darker to match the ambience lighting.
-2 The seat needs a bit of shadow casted from the roof of the car, this also gives it depth
-3 Headlights on the base image looks rather dull and flat, give it some brightness and contrast (Or use the dodge tool)
-4 Same thing with the windows, there are no blue lights from the sky hitting the wheels, so I would remove all the blue/ cyan from the wheels
5- You still need more practice with the reflections and because the side of the car isn't next to Dash's hotrod I think you dont need it in the reflection. I would remove it and just make a nice patch reflecting the floor near it. (Similar to the refrence dodge challenger)
If you do add reflections try to put it in Overlay or multiply instead of just lowering the opacity
Like so
