On the contrary, I can still tell it's HDR and it doesn't look good. The tones in the sky are totally unrealistic (almost looks like negative tone curve in places) and evidence of highlight blowout is still seen there. Did not fix the chromatic aberration prior to merging, meaning I can see cyan/magenta fringes in the image (look at the front grill). Again, seems like an HDR shot that didn't really need to be in the first place. It's a black car, it should have very dark tones.
In the third, the reflection on the car body blends too well into the background sky, such that you cannot tell where it ends easily. Also nearly 50% of the image area is a totally blown out sky, leaving not much else for the eye to see.
Ruahrc