Miami Dolphins were the only team in NFL history to have a perfect season in 1972, where they won 14 regular season games and two play off games.
Pats came close in 2008, but are cheaters and karma bit them in the behind at the super-bowl
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Yes, the Patriots were undefeated through the season and lost to the Giants in the 2007 season
yes the 1972 dolphins went udefeated and won the superbowl that year for the perfect season with their qb bob greise
Yes. The New England Patriots finished with a perfect season in 2011-2012 but, lost in the Super Bowl to the New York Giants.