My first composite(wip)

[Billabong]

I have been practicing on this first composite of mine for about 3 days. I feel like I'm getting close, but its still not looking right. I have a vray light on the other side of car about the height of the street lamps, I have two targets, one for each tire and rim, because they weren't getting any light.I excluded everything else from them. I tried to use a night time hdri, but it just rendered the car black, so right now im using a dosch hi res daylight hdri in the gi environment override. I, I'm also getting lighting down in the grill which I don't know why, because there is a cover on the bottom. I am hoping my AO pass will hide that, But I would really appreciate any help I could get to take this thing to the max.

one more question, how can I get my matte ground object to receive reflection, I tried in the matte object settings, but it's already set on 1.0, so I don't know what else to do.

Thanks so much for any help

[exagero]

Sample

Hi! Guy.
I have done the similiar image. How I did. I Created the spherical and got vraylightMtl whith the same backgroud image in the color slot, so I have the same reflect at car . For the shadow I used the box plane, after I composite all in the Photoshop, cause my vrayMtlwrapper is give error. Try you do the same.

[Billabong]

Thanks for helping exagero, I tired your suggestion and the reflections look a lot better now, but now my matte objects is showing up. Any thoughts?

[Jonferimonic]

You are getting unrealistic results because you're approaching your lighting in an unrealistic way. You should exclude the lamp-height vray light unless there is actually a light source there, same with the lights directed at the wheels - they stand out too much being isolated. Your night HDR probably rendered the car black because it wasnt set high enough, whack the intensity up and see what happens, if not try what exagero said and use your BG image in an environment slot and pump the intensity up again, this is how you will get reflections on the car to match the BG. At the moment it is very flat.
I dont think that is lighting down by the grill, i think thats the BG image showing through because your car model has no thickness. You could isolate that panel and put a shell on it. Hope that helps a little?