@abhi: really cool work! I like your model a lot; thought I do like much of your other work better, probably because of the lighting

I hope you're open to a bit of constructive criticism, cause here it comes (this is mostly from a photography and graphic design point of view mostly

)
First what I like about it..

The body of the car looks really well modeled, I love all the angles etc. and they look a lot like the real thing. Textures on the body are also very well done. I also like the materials you've used.
Now on to what I feel can be improved... You can probably add a bit of specular to the body and add several lights above it to light it like a showroom or car advert; preferably some kind of long rectangular lights if Maya had them. I read that you're still working on the environment, but I'm just giving you a suggestion out of what my photography professor has taught me about lighting hehe.. I don't know if the reflections/car lights have been done by your renderer or if you've put them in later in PS, but it sort of looks fake right now :| If you've done it in PS, maybe it'll be cooler to do it in Maya itself? Or use a non-reflective base? Also the tyres look like they could use some work. Have you used a bump map for the front tyres? Maybe a displacement map would look more realistic... or if it's already a displacement map, then you could try fiddling with the displacement amount.
I really don't have a lot of experience with 3D, but whatever I've mentioned comes from my limited knowledge of 3D and a relatively extensive knowledge of aesthetics, GD and photography.

I hope some of this helps!
Oh, I would also suggest going through some photography books or articles to understand lighting, materials, environments and composition. This is @Zero Cool as well.
Anyway, great job! I hope to see more from you, and do join deviantART. Give me a visit there if you do. (
Deathdart on deviantART )