Tigercat 635E is 5 ft 0 in longer than Tigercat 615C — 31 ft 1 in vs. 26 ft 1 in, a 19% difference.
Tigercat 615C and Tigercat 635E stand about the same height, both around 10 ft 4 in.
Tigercat 635E weighs 13% more than Tigercat 615C: 48,750 lb vs. 43,000 lb.
Tigercat 615C runs 220 hp; Tigercat 635E runs 260 hp.
