I wouldn't know how to tell an Exec from a Ti in that era of car, without knowing that the Ti might have certain trim or equipment that the Exec doesn't. Nothing really to tell from those photos. And really, it's would not make any difference anyway. I'm assuming you don't want it for the way it is now. You'd be wanting to clean it up inside, new seat covers or seats, etc. If the Ti had a different (better) intermittent wiper setup over the Exec, then both are really old and crude compared to modern cars anyway, so who's going to be able to tell the difference anyway. Aftermarket stereo gets rid of another possible difference. Different trim strips, badges or mudflaps are another who cares? factor. None of it makes any difference now.