As for the cruise on the old ones. More like 120mph. Cessna are a bit more truthful these days.
Yes, I've always been bemused by these quoted figures. Our 'K' with a 160hp donk cruises at about 103 knots; our 'M' with a 180hp cruises at about 110. Both 75% power at 3,000' fullish tanks and two up. Our 28 with 160hp struggles to do more than 95kts unless you really cane it. Our 152 with the cruise prop goes faster...