48 inches - just the tailgate
69 inches - back seat folded, seat bottom in place
87 inches - back seat folded, seat bottom removed, front passenger seat most forward
108 inches - back seat folded, seat bottom removed, and front passenger seat reclined to make it flat from glove box area to back of tailgate

Have fun with the metric conversion.

Good luck,

__________________
Michael

1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230