The '96-'98 coupe/sedan and '99-'00 coupe/sedan rear bumpers should be interchangeable. I think that rule goes the same for hatch rear bumpers. I know that the hatch bumpers will not fit on sedans or coupes though and visa-versa. The '96-'98 bumpers should curve in slightly at the bottom, and the '99-'00 should look the same, but after they curve inward they should curve outward again making a little lip. I thought that the rear bumpers were all the same on all models of coupes, sedans and hatches though.