Once upon a time (2007-...? 😁 ), there were T670i and C670i John Deere combines (C -series replaced CTS)
Both had 400 horsepower and according to JD, the C was halfway on performance between T and S series.
Apart from the slight differences in the construction of the beater itself, the T and C differed in what was behind the overshot beater
T is still in production and C is not
At AGCO, they went further, because with the arrival of Ideal they withdrew from production the MF Delta and its 8 walkers version

Time will tell if the differences in performance between CR, CH and CX in correlation to price will be beneficial for the future of this combine
By the way, if the NH folks are reading, I don't mind if you bring this wonder to me for tests - I won't charge you much 🤣