The 1961 'Sharknose' Ferrari gave its WDC driver Phil Hill the greatest car advantage of all: it was 0.7 faster than the next fastest rival car, the Cooper-Climax Type 55.
This compares to the 0.4 to 0.5 advantages by the 2014-2016 Mercedes over its next-fastest rival cars.
In 1992 the Williams-Renault FW14B gave Mansell a 0.7 advantage over Senna's McLaren-Hondas, but as my stats contentiously showed, the McLarens were only third fastest cars; the second fastest and closest rival car to the Williams-Renault, was the Benetton-Cosworth at 0.4 slower, ie about the same as Hamilton's 2014-2016 Mercedes enjoyed.
What perhaps skews perceptions of relative car speeds is 'adding' the drivers to make the Packages, which is what we see recorded in results, measured on times and in WDC points.
In 1961 WDC Phil Hill was not as fast as Lotus-Climax drivers Moss and Clark, nor Surtees who drove a year-old Cooper-Climax. Phil Hill driver-rated slightly slower than his Ferrari team-mate Von Trips, and equal to Graham Hill and Dan Gurney. Some of Phil Hill's car advantage was reduced as a Package: he won 2 races, Von Trips 2 and Baghetti 1 for a total of 5 wins in 8 races for the 1961 Ferraris. Moss and his Lotus-Climax was simply too good at Monaco and Nurburgring, and the Ferraris did not enter the last GP in the USA. Still a dominant performance by Ferrari, which it should have been with such a fast car.