Dosen't all gs tegs have leather interior????

I found a 99 teg for sell but the guy put that it was a "gr", i was like uhhh??? i sure its not a gsr...

Its the dark blue, 2 door, manual, sunroof, cloth seats.... im thinkin its a ls... help me out here...

I can't find jack shit on the internet... so i turned to good ol drag...