Overall speeds seem correct see my testing sreenshot, and match intial data i was able to find, although time to gain speeds seems incorect and sluggesh given power to weight and PSI of the Panther. I am still in the process of finding and collecting data but ChatGPT was able to take the data on both the S76 and Panther and analize and give the following statements on screen shot attached.
Data on Pather speed testing please find testing was carred out off road and should be taken into account -
https://tankandafvnews.com/2015/11/13/from-the-vault-post-war-british-report-on-panther-reliability/
Will find more tomorrow after further work on this but spent all day testing. and can be place holder.
Video also shows acceleration and nimbleness (for a tank) also an example to compare with for sherm