Originally posted by jake616
Well this is directed more to those who take the nice car shots from different angles and scenes, but if you can help in anyways please do 
Questions
*What is the best time to get good shots?
*What are good places to get shots?
*What are good angles/ and how do you get them?
*Flash or no flash?
*Tips for getting pictures in the rain?
*any photography advice you can offer?
Jake,
I made my living shooting pictures of cars for a few years. Best time of the day to get shots is in the middle of the day with the light as direct and overhead as possible. If you have to take pictures at other times or late in the year, point the car into the sun so that the shade is thrown to the rear.
Good places to get shots vary. That's where I think the "art" comes in. I like shots that have lots of nature in the background.
The best angle is usually the front 3/4 shot with the wheel turned away. Remember, you never want to see the tread of the tire, the wheel should aways be turned away from you.
Use flash as little as possible. Unless you're using a full studio setup, you're never going to get consistent lighting with a flash.
Pictures in the rain? Make sure to keep the camera covered and keep water off the lens.

That's about all the advice you should need, everything else should stay the same.
Probably the best advice I can give is to invest in a good UV filter for your lens, and if necessary, a circular polarizing filter. Some other bits of advice:
1) Keep yourself out of the picture... Don't show your own shadow or your reflection in the car.
2) Shoot far away from the car and zoom into it or use a very high quality lens with a large apurture. This will help to blur out the background and keep the car as the focus of the shot.
3) Shoot on the same level or below the level of the car. Unless you have a step ladder, don't shoot down onto the car.
Here is one of my favorite pictures I took of my old car to illustrate the front 3/4 shot:
1999 Firebird Formula
If you have any other questions, don't hesitate to ask.
Peter