4ontheFloor, I was going by Santucci's book since I don't have a late model six to measure. From what he wrote the 194/230/250 is about two inches shorter in length than the 235/261 and about 3 inches less in height. Weight savings is 24%.
The 292 is supposed to be the same height as the 235/261, same difference in length and 19% lighter. Does anyone have an early model and a late model 6 to measure?