PHOTOSHOP Edit REQUEST - Fix Calendar pic

I am pretty good at Photoshop but have been unable to figure out how to fix this.



You'll notice the sun is GLARING on the back wall on the left of the car. I want to DECREASE the glare but am having trouble getting it to reduce the glare while keeping the details and still look REALISTIC.

Anyone want to have a go at it?

Here is my .PSD file of the file. (20 megs)

http://www.camarosource.ca/temp/100_1775_filtered_brighter_fixed_bkg2.psd

Thanks SO very much!!

If anyone here is able to have a go at it, please leave it as a PSD file thanks

You can duplicate layer, select the car, delete it.
Change blending mode to multiply, play with opacity
Good luck