Lea and Shauna, the original Girlbusters! This is a pretty dated photo, 2009 or so. There have been a TON of additions to the car and the costumes, but this was a pretty good starting point, IMO.
The outfits the girls are wearing are Betty Ford dresses from Dickiesgirl.com - [link]
The patches can be ordered from the store at GBfans.com!