Miami Dolphins were 14-0 during the regular season and went on to win the Super Bowl.
The 1972 Miami Dolphins posted a 17-0 record (regular season and playoffs).
Both the 1972 Miami Dolphins and the 2007 New England Patriots were undefeated in the regular season.
the Tennessee titans had a record of 13-3 the best that season
The Packers' best NFL regular season record was in the 2011 season, when they went 15-1.
An NFL season in 1972 consisted of 14 regular season games.
pittsburgh
The team with the best regular season record in 2004 was the Pittsburgh Steelers at 15-1.
The Miami Dolphins, with a 17-0 record in 1972.
Chicago Bears 15-1
For the 2008 season, that was the Tennessee Titans at 13-3.
Through the 2008 season, the single season NFL record for interceptions returned for a TD is 4 and is held by Ken Houston of the 1971 Houston Oilers, Jim Kearney of the 1972 Kansas City Chiefs, and Eric Allen of the 1993 Philadelphia Eagles.
In the 1972 season, the Miami Dolphins finished the regular season with a record of 14-0 and wound up winning the Super Bowl to end with a record, regular season and playoffs, of 17-0.