The San Francisco 49ers had a perfect 5-0 record in the Super Bowl going into the 2012 season. The Niners were a dominant squad that season and got through the NFC side of the bracket to set up a showdown against the Baltimore Ravens in the Super Bowl.
Jim Harbaugh took over as head coach before the 2011 season. No one expected the 49ers to become one of the best teams in the league so early in his tenure, but with some elite pieces in place, San Francisco went 13-3 in 2011.