bro tehy are 2diff cars from 2 diff era , firstly the proton satria gti is a quick car , more comfortable as its not very old , cool style and overall a hot car , the toyota ae80 is an older car , cheaper and reliable but parts although widely available but nt every part is , for a car tht age u will face rust problem , window rubber seals giving way , a not so comfortable interior and the aircond will nt be flawless cold during hot days as u must understand when the toyota was made it did nt have so much technology yet , the proton satria gti is obviously a better buy on overall.
Wad is ur budget and what u want a car for drift / speed / show off / style. I can help u narrow down ur search based on what u like with cars.