In 1805 Prussia had: 13 cuirassier regiments, 14 dragoon regiments, 9 hussar regiments, 1 'Towarzysze' regiment - actually uhlans Not too much uhlans they had... But I don't wanna argue about that I like uhlans in my Prussian kingdom
As for dragoons it seems as if you know better but I will check it unless I lost my book.
PS I found sth like that:
"The heaviest English cavalry is far from possessing the uniformity
and the firm seat of the French and Austrian cuirassiers;
and their light-horse is still more inferior in intelligence
and activity to the Hungarian hussar and the Cossack.
They have no idea of the artifices of partisan warfare,
and they know little how to charge en masse. When the fray
commences, you see them equally vulnerable and offensive,
cutting instead of thrusting, and chopping with more fury
than effect." - general Foy