well first establish a vanishing point.Take a ruler and draw the lines out from that point to show the limits. then draw a box the shape of a car on the inside of those lines and star filing in the details.
Do you get what im saying or no....

yeah. i'll try that out next time. thanks!

your great with cars. All i see you need to work on is perspective. But other than that you did a great job.

thanks! any ideas that i can help me improve?