Tigercat 615C is 1 ft 1 in longer than Tigercat 630E — 26 ft 1 in vs. 25 ft 0 in, a 4% difference.
Tigercat 615C and Tigercat 630E stand about the same height, both around 10 ft 4 in.
Tigercat 630E weighs 6% more than Tigercat 615C: 45,500 lb vs. 43,000 lb.
Tigercat 615C runs 220 hp; Tigercat 630E runs 262 hp.
