Simplify the following text for a Grade 7 native English-speaking person.
Original: Originally , the track featured four track configurations : the long Gesamtstrecke ( `` Whole Course '' ) , which included the 22.810 km Nordschleife ( `` Northern Loop '' ) , and the 7.747 km SÃ 1\/4 dschleife ( `` Southern Loop '' ) .
Simplified: Originally , the track featured four track configurations : the 28.265 k-long Gesamtstrecke ( `` Whole Course '' ) , which in turn consisted of the 22.810 k Nordschleife ( `` Northern Loop '' ) , and the 7.747 k SÃ 1\/4 dschleife ( `` Southern Loop '' ) .