smoke?

needs to be more disperse. make the brush wider for the farthest smoke

i think smoke should be slightly orange because of sunset <_<
and car doesn't look like its in motion

The car needs more details and more roll The smoke is not that real. Try finding a drift donor and copypaste the smoke from it. Then brush it keeping it similar to the donor. And just add more motion blur to the wheels, especially the rear one.