i have every Japanese mr2 Toyota sales brochure from 89-99,i have a spare copy of 93/94 year if you really want to throw the book at them! its in Japanese but google lens can read it.
93/94 brochure says a GT (hardtop or targa) are both the same vehicle weight at 1260kg then it lists a total weight at 1370kg. im only guessing these are probably the dry and wet weights so no fuel,oil,coolant etc.
3sgte Max power listed at 245PS/6000rpm and max torque 31kg-m/4000rpm.