They cannot play in the Superbowl as they play in the same conference - the AFC - and in the same division - the AFC East. They have played three times in the playoffs and the Patriots have won two of those three meetings.
The Los Angeles/St. Louis Rams have appeared in three Super Bowls and won once (championship win is in bold):
end of 2001 season
They never did.
The Carolina Panthers.
Regular season: Patriots & Panthers Regular season & Playoffs: Panthers
The St. Louis Rams, Carolina Panthers, and Philadelphia Eagles
Right now the Patriots are. The Pats are 6-2 and the Panthers are 3-5.
the patriots did
The New England Patriots were the winners of the 2004 Super Bowl.
The New England Patriots defeated the Carolina Panthers 31-29 in Super Bowl XXXVIII.
Carolina Panthers.the panthers
NFL Follow Your Team Panthers - 2007 Week 14 Panthers at Patriots Game Highlights was released on: USA: December 2009
Tough call - the Panthers have won two of five career meetings and played brilliantly in the Superbowl against the Patriots.
Superbowl XXXVIII vs the Patriots - the Panthers lost 32-29.