If you have't seen this site before, check it out. There are seven chapters of material here and it's a lot to read, but it's a must for anyone purchasing a new/used car from a dealership. Once you read all this you'll have a whole lotta confidence walking into a dealership and negotiating a price.
http://www.carbuyingtips.com
2003 Pontiac Vibe/Base (SOLD)2005 Saab 9-2X Aero2000 SV6501994 Dodge Stealth R/T TT (Modified to ~450hp)Factory Five A/C Shelby Cobra (75% Completed)