k i thought pics would make it a lil easier to understand
69 front
68 front
69 side
68 side
69 back
68 back
now as u can see from the pics the 69 and 68 have completley different body styles. the 68 has a more "rounder" body while the 69 has more lines on it(see pics of the side for comparision)
also their are many different options that change the body style to both cars. hide-away headlights in the rs pacage gives both cars hide aways yet the car still look completle different.
imo to any camaro fan it will be hard to pass a 69 as a 68. good luck tho. one day im going to try and build a model of my dads 69 ss