1. You gonna get flamed for posting in this forum.... this is for race reports and questions should go in the General forum.
2. You gonna get flamed for not using the search function... Specially about this series. There are about a million posts on the GTWC.
But since so many people have asked the same question I happen to have a handy piece of text to copy and paste. Make sure you follow all of the links....
Then, be aware that there is no need to worry about buying a car. You can do it with a number of prize cars and pretty much $0 if only you can get yourslef to wait a little longer.
Bman - have a look round the site before you post again. This question has been asked and answered many times. And make sure you post in the correct section next time.