gl - 1.3l carb, power steering, power windows, power side mirrors
gli - 1.6l efi, power steering, power windows, power side mirrors
glx (until first half of 97)/glxi (second half of 97 and onwards. also called 97 1/2 familia) - same as gli plus abs, split 60/40 rear seats, fog lights, tilting steering wheel, (glxi had srs airbags)
mazdaspeed gli/glx - gli and glx PLUS mazdaspeed front spoiler, side skirts, rear fins, trunk spoiler, front grill, upper strut bar, steering wheel, shift knob, 4-way adjustable shocks, eibach springs