Originally Posted by
Happyflyer
Never made since to me, Boeing 75 and 76 launched as a pair for this exact purpose. 78 launches to replace the 76, but with no pair, and now that's exactly what would sell.
The problem with the 787 is that with its extra long range it burns the same amount of fuel on a 767 route as a 767 does. Airlines actually do want a 767 replacement, which the 787 is not really if you want to take advantage of better fuel burn.