Help with 3d effect on a widebody style

Ive created a a recreation of the widebody style of the 458 italia shown by liberty walk
but for a exige S now i have a question…What can i do to give it more of a 3d effect
i already used some gradients to look like there are some air channels for the tires
but it still looks rather flat
but flat any ideas…?

Do you have any photos that you can put in this thread to show us? this way we may be able to help more

How do I upload images from my Xbox one to here…?

Share them in game, and then go here >
then download them and host on flickr, photobucket etc… (dont hotlink to the above gallery)