Alright im not saying im the authority on this so if you wanna add stuff go ahead. First thing you need to do is figure out a spot to take pics. If you can't figure out what type of place to go, pick up a car magazine or a couple websites to get ideas. Its better to start out by basing your idea off of others to get yourself into a personal style. Second thing you need to do is figure out which direction you are gonna be shooting and plan your photoshoot based on the where the sun rises or sets, or when theres gonna be or not be a crowd. After that you need to look at weather…..clouds are good, no clouds are bland, rain will make your car dirty. After you got yourself a place, time, and good weather you can clean your car. Pay special attention to the wheels, tires, and wheel wells as those tend to stand out and if they are clean they will make your car look 10x cleaner and newer. When you arrive on site, make sure you park so that things like trees and flag poles are not behind the car. You want the car to stand out and have some distance between your background and your car to create depth. Also make sure to take pics of the front, back, sides, corners etc etc. Also make sure you either crouch or shoot from a ladder. Taking pics from your normal height makes for boring pictures. Theres not one trick for taking interesting pictures, you just gotta do alot of little things and it adds up making some good pictures.