Playoffs.

Think it won’t happen ?  Many of us right here watch on the last Sunday of the 1999 season.

A well-known scenario at the end of the 1999 NFL season, where the Carolina Panthers and Green Bay Packers were tied in record and competing for a wild-card spot, and the tiebreaker came down to net point differential in conference games.
In the final week of that season (Week 17), both teams played simultaneously and engaged in a widely discussed effort to run up the score in their respective games to gain an advantage in the points-based tiebreaker:

It was scoreboard watching , with each team running up the score.

Sadly the late game knocked both the Panthers & Green Bay out of the last wild Card spot.

That was one great, exciting game to watch.

You know, I do not recall that situation.... I'm ashamed. 

Yeah, the "tie-breaker" rules are a bit of a conundrum. I always remember the first four levels (head to head; division record; record against common opponents; and record against strength of schedule...), but that calculation against strength of schedule is a real quandary because of how 'strength of schedule' is calculated at the end.

Anyway OP, thanks for the Panthers history for 1999..