55 is a 1108cc (1.1L) 8v Single Point Injection - 55BHP
60 is a 1242cc (1.2L) 8v Single Point Injection - 60BHP
75 is a 1242cc (1.2L) 8v Multi Point Injection - 75BHP
The team is a limited edition poverty spec model "S" - It came with a few updated interior parts (cloth headrests, blue console surround, different steering wheel, rev counter and temp guage) and 14" steel wheels, not 13", but no engine increases